sábado, 17 de maio de 2014

PROBLEMAS E ESTUDOS

                   Problemas
                                                    
                                                              SOLUÇÃO DO PROBLEMA ANTERIOR
                                                    
                                                 Problema 73

                                                            1. a5-d8                                e1xa5
                                                            2. c5-b6                                a7xc5
            Se 2. ... a5xc7   3. d8xb6   a7xc5   4. d4xa7 X.  
                                                            3. d4xb6                               a5xc7
                                                            4. d8xb6                               h2-g1
                                                            5. b6-a7                                X.

Tema: Mate a Descoberto

                                                               74
Jogam as brancas e ganham

A solução desse problema, veja na próxima postagem

                  Estudos

                                                            SOLUÇÃO DO ESTUDO ANTERIOR

                                                            Estudo 13

                                                           1. h6-f8                                 e7-f6
            Se 1. ... e7-d6   2. f8xa3 h8-g7   3. a3-e7 d8xf6   4. f2-e1 X.
            Se 1. ... h8-g7   2. f8xb4 g7-f6  (se 2. ... g7-h6   3. b4-e7 X; se 2. ... d8-a5   3. g3-h2 X)   3. b4-c3 f6-g5   4. c3-e1 d8-f6  (se 4. ... d8-a5   5. e1-f2 a5xe1   6. g3-h2 e1xg3   7. h2xh6 X)  5. f2-g1 h4xf2   6. g1xh8 X.
                                                           2. f8-g7                                 f6-g5
            Se 2. ... d8-a5   3. g7xc3 a5xd2   4. f2-g1 X.
            Se 2. ... f6-e5   3. g7xc3 d8-a5   4. g3-h2 X.
            Se 2. ... d8-e7   3. g7xa1 e7-a3   4. g3-f4 a3-c1   5. f4-h6 c1-a3   6. a1-e5 a3-f8  (se 6. ... a3-b4   7. h6-g7 X)  7. f2-d4 f8-b4   8. e5-h2 b4-f8*  9. d4-f6 f8-c5   10. h2-d6 c5xg5   11. h6xf4 X.
                                                           3. g7-h6                                d8-f6
            Se 3. ... h8-g7   4. h6xf8 d8-a5   5. f8-b4 a5xd2   6. f2-g1 h4xf2   7. g1xc1 X.
            Se 3. ... g5-f4   4. g3xe5 d8-a5   5. e5-g3 a5-d8  (se 5. ... h8-g7   6. h6xf8 a5-d8   7. f8-e7 X)  6. h6-f8 d8   7. f8-b4 X.
                                                           4. h6xf4                                f6-g7
            Se 4. ... f6-a1   5. f4-c1 a1-g7   6. c1-h6 g7-f8   7. g3-e5 X.
            Se 4. ... h8-g7   5. f2-e1 X.
                                                           5. f4-h6                                 g7-a1
                                                           6. h6-g7                                h8xf6
                                                           7. f2-g1                                 h4xf2
                                                           8. g1xh8                               X.

Temas: Bipolar, Mate em Ângulo, Finta e Vaivém Duas Cores



______________________________

* E está formado o Pé-de-Avestruz. Ver, de minha autoria, O Pé-de-Avestruz e outros ensaios, p. 52, Diagrama 8.4.)

                              Estudo 14
 Jogam as brancas e ganham

A solução desse estudo será dada na próxima postagem

                  Finais
                                 Final 9
Jogam as brancas e ganham
                                                       
                                                           1. d8-a5                                b4-a3
                                                           2. a5-e1                                 a7-b6
                                                           3. h2-g3                                b6-c5
            Se 3. ... b6-a5   4. g3-f4 e3xg5   5. e1-d2 g5-h4  (se 5. ... g5-f4   6. d2xh6 a5-b4   7. h6-d2 X)   6. d2-e1 a5-b4   7. e1xa5 h4-g3   8. a5-b6 X.
            Se 3. ... e3-f2   4. e1-a5 f2xh4   5. a5xc7 X.
                                                           4. g3-f4                                 e3xg5
                                                           5. e1-f2                                  c5-b4
                                                           6. f2-e1                                  g5-f4
                                                           7. e1xa5                                f4-e3
                                                           8. a5-e1                                 a3-b2
            Se 8. ... e3-d2   9. e1xa5 X.
                                                           9. a1xc3                                e3-d2
                                                        10. e1-f2                                  d2xb4
                                                        11. f2-d4                                  X.

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