quarta-feira, 18 de novembro de 2015

PROBLEMAS + O “PÉ-DE-AVESTRUZ” (VI)



 
PARTE 2
PARTE 1 Sumário (ver postagem de DEZ.2014)


                  Problemas

                                                             SOLUÇÃO DO PROBLEMA ANTERIOR

                                               Problema 91

                                                           1. d4-e3                                f4xd2
                                                           2. h6xh2                               e1-h4
            Se 2. ... e1-f2   3. g1xe3 X.
            Se 2. ... e1-g3   3. h2xe5 X.
                                                           3. c1xe3                                h4-f2
            Se 3. ... h4-e1   4. h2-e5 e1-f2  (se 4. ... e1-b4   5. e5-a1 X)  5. e5-f4 f2xd4   6. f4-e3 X.
            Se 3. ... h4-g5    4. e3-d4 g5-d2  (se 4. ... g5-c1/h6    5. h2-e5 X; se 4. ... g5-f6   5. h2-e5 X)   5. h2-e5 X.
                                                           4. h2-f4                                 f2xd4
                                                           5. f4-e3                                 d4xf2
                                                           6. g1xe3                               X.

Temas: Mate Cruzado, Vaivém Negro e Finta

92
Jogam as brancas e ganham 

A solução desse problema, veja na próxima postagem


O “PÉ-DE-AVESTRUZ” (VI)
 1.2 O “Pé-de-Avestruz”
e uma Dama e a dupla de pedras ─ IV
(CONCLUSÃO)

8.1

            Com a Dama em a5:

                                                           1. d4-a1                                a5-e1
            Se 1. ... a5-d8   2. a1-f6 d8xg5   3. h6xc1 X.
            Se 1. ... a5-b4   2. a1-b2 a3xc1   3. h2-f4 c1xg5   4. h6xa5 X.
                                                           2. a1-h8                                e1-a5
            Se 2. ... e1-f2   3. h8-b2 a3xc1   4. h2-f4 c1xg5   5. h6xg1 X.
                                                           3. h8-d4                                a5-e1
                                                           4. d4-f2                                 e1xg3
                                                           5. h2xe5                               h4-g3
                                                           6. e5xh2                               a3-b2
                                                           7. h2-e5                                X.

            Com a Dama em e1:

                                                           1. d4-f2                                 e1xg3
                                                           2. h2xe5                               X.

            Com a Dama em f8:

                                                           1. d4-a1                                X.

8.2

NOTA
FINAL DIABÓLICO
      Como é sabido por quem nos acompanha desde o início do blog, há outro final, com igual quantidade de peças, mas com diferente distribuição dessas peças no tabuleiro: é o “Final diabólico”, de autoria do doutor Bolívar Mascarenhas. Ver PROBLEMAS E ESTUDOS + O “FINAL DIABÓLICO”. Clique aqui.

Final 5
“Final diabólico”
(de autoria do doutor Bolívar Mascarenhas)
Jogam as brancas e ganham

            E, voltando ao Diagrama 8.2, segue a solução:

            Com a Dama em a5:

                                                     I

                                                           1. h6-d2                                a5xe1
                                                           2. d4-f2                                 e1xg3
                                                           3. h2xc7                               X.

                                                     II

                                                           1. ...                                       a7-b6
                                                           2. d4xa7                               a5-c3
                                                           3. h6-g5                                h4xf6
                                                           4. a7-d4                                X.

            Com a Dama em a3:

                                                                                  I

                                                           1. d4-h8                                a3-f8
            Se 1. ... a3-c5   2. h6-g5 X.
            Se 1. ... a7-b6   2. h8-b2 a3xc1   3. h2-f4 X.
                                                           2. h2-f4                                 f8-e7
            Se 2. ... f8-a3   3. h6-f8 X.
            Se 2. ... a7-b6   3. f4-b8  (ver Com a Dama em f8, 2º lance).
                                                           3. h6-f8                                 e7-d8
                                                           4. f8-c5                                 d8-b6
            Se 4. ... d8-a5   5. c5-g1 a5-d8/e1   6. f4-h2 X.
                                                           5. c5-g1                                b6-d8
            Se 5. ... b6-a5   6. f4-h2 a5-d8   7. h8-f6 d8xg5   8. h2-g3 X.
                                                           6. f4-h2                                 d8-a5
                                                           7. h8-c3                                a5xe1
                                                           8. g1-f2                                 e1xg3
                                                           9. h2xc7                               X.

                                                                                  II

                                                           1. ...                                       a7-b6
            Se 1. ... a3-b4   2. h6-d2 b4xe1   3. d4-f2 e1xg3   4. h2xc7 X.
            Se 1. ... a3-f8, ver, adiante, Com a Dama em f8.
                                                           2. d4xa7                               a3-b2
                                                           3. h6-g5                                h4xf6
                                                           4. a7-d4                                X.

            Com a Dama em f8:

                                                           1. d4-h8                                a7-b6
            Se 1. ... f8-a3   2. h2-b8 a3-f8  (se 2. ... a7-b6   3. h8-b2 a3xc1   4. b8-f4 X)  3. b8-f4 e veja em Com a Dama em a3 (I), o lance número 2.
                                                           2. h2-b8                                b6-a5
            Se 2. ... b6-c5   3. h8-c3 f8-e7   4. c3-f6 X.
            Se 2. ... f8-c5   3. b8-c7 b6xd8   4. h6-g5 X.
                                                           3. h8-d4                                f8-a3
            Se 3. ... f8-b4   4. d4-b6 X.
            Se 3. ... a5-b4   4. d4-h8 b4-a3  (se 4. ... f8-c5   5. h6-g5 h4xf6   6. h8xa7 X)  5. b8-h2 f8-b4   6. h8-b2 a3xc1   7. h2-f4 X.
                                                           4. h6-f8                                 a3-c1
            Se 4. ... a5-b4   5. f8-h6 X.
                                                           5. d4-b2                                c1xa3
                                                           6. b8-d6                                a3xe7
                                                           7. f8xd6                                X.

8.3

                                                           I

                                                           1. d4-b2                                b8-a7
            Se 1. ... f8-b4/c5   2. h2-c7 b8xd6   3. b2-e5 X.
            Se 1. ... f8-a3   2. h2-f4 a3xg5   3. h6xf4 b8-a7   4. f4-c7 X.
                                                           2. b2-a3                                a7-b6
                                                           3. h6-g5                                h4xf6
                                                           4. h2-d6                                X.

                                                                                 II

                                                           1. ...                                        b8-a7
            Se 1. ... f8-b4   2. h2-c7 b8xd6   3. d4-e5 X.
            Se 1. ... f8-a3   2. d4-b2 a3xc1   3. h2-f4 c1xg5   4. h6-f4 b8-a7   5. f4-c7 X.
e estamos de volta ao Diagrama 8.2 Com a Dama em f8.

8.4

         Nada a comentar.

8.5 

                                                               I

                                                           1. d4-f6                                 f8-c5
                                                           2. h2-d6                                X.

                                                                                 II

                                                           1. ...                                       f8-a3
            Se 1. ... f8-b4   2. h6-d2 b4xe1   3. d4-f2 X.
                                                           2. d4-b2                                a3xc1
                                                           3. h2-f4                                 X.

ANEXO
            Os Diagramas 2.3, 3.1, 4.2 e 5.3 podem ser redesenhados e solucionados de um modo diferente do “Pé-de-Avestruz”:

   2.3      
                  

         Com a Dama em d8:

                                                           1. f6-h4                                 d8-b6/c7
                                                           2. f8-b4                                 a5xc3
                                                           3. h6-g7                                X.

            Com a Dama em h4:

                                                           1. f6-d8                                 h4-e1
                                                           2. h6-d2                                e1xc3
                                                           3. d8-f6                                 c3xg7
                                                           4. f8xh6                                a5-b4
                                                           5. h6-d2                                b4-a3
                                                           6. d2-c3                                X.

3.1

         Com a Dama em d8:

                                                           1. f8-e7                                 d8-a5
                                                           2. e7-b4                                a5xg7
                                                           3. h6xf8                                a7-b6
                                                           4. f8-h6                                 b6-c5
            Se 4. ... b6-a5   5. h6-f8 X.
                                                           5. h6-e3                                c5-b4
                                                           6. e3-d4                                X.

            Com a Dama em h4:

                                                           1. h6-g5                                h4-e1
                                                           2. g5-d2                                e1xg7
                                                           3. f8xh6                                a7-b6
                                                           4. h6-e3                                b6-a5
                                                           5. e3-d4                                X.

4.2 

         Com a Dama em d8:

                                                           1. f8-e7                                 d8-a5
                                                           2. e7-b4                                a5xg7
                                                           3. h6xf8                                b8-c7
            Se 3. ... b8-a7   4. f8-c5 h8-g7   5. c5-d4 g7-h6   6. d4-e3 X.
                                                           4.  f8-h6                                c7-d6
                                                           5. h6-f4                                 d6-c5
                                                           6. f4-e5                                  X.

            Com a Dama em h4:

                                                           1. h6-g5                                h4-e1
                                                           2. g5-d2                                e1xg7
                                                           3. f8xh6                                b8-c7
                                                           4. h6-f4                                 c7-b6
                                                           5. f4-e5                                  X.

5.3

         Com a Dama em b8:

                                                           1. f8-d6                                 b8xg7
                                                           2. h6xf8                                d8-c7
                                                           3. f8-h6                                 X.

            Com a Dama em h4:

                                                           1. h6-g5                                h4-e1
                                                           2. g5-d2                                e1xg7
                                                           3. f8xh6                                d8-c7
                                                           4. h6-f4                                 X.

(CONCLUSÃO)

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