quinta-feira, 15 de fevereiro de 2018

PROBLEMAS, ESTUDOS E PARTIDAS DE COMBINAÇÕES




PARTE 4
PARTE 1  19.JAN.11/DEZ.14      PARTE 2  JAN.15/DEZ.16
PARTE 3  JAN.17/DEZ.17



Frase célebre*
            “Para estimular a memória e aguçar a inteligência nada há melhor que um bom problema de damas. E por esse motivo, recomendo aos alunos do curso secundário a resolver diariamente problemas do jogo de damas.” (Dr Richard Schmidt ─ professor e diretor, em 1932, da Dublin ─ School)
_________________________
* Citada por P. D. Gabriel, na (extinta) coluna Damas, no Correio do Triângulo, de 07.07.92



                    Problemas

                                                            SOLUÇÃO DO PROBLEMA ANTERIOR

                       Problema 120

                                                           1. b6-a7                                h6xf4
                                                           2. a7-b8                                g3-h4
            Se 2. ... f4-e3   3. g1xd4 h8xc3   4. a1xe5 g3xd6   5. b8xg3 h2xf4   6. e1-f2 X.
            Se 2. ... h8-g7   3. a1xh8 g3-h4   4. b8xg3 h2xf4   5. g1-h2 f4-e3    6. h2-f4 e3xg5   7. h8-e5 h4-f2   (se 7. ... g5-f4   8. e5xg3 h4xf2   9. e1xg3 X)   8. e1xg3 g5-f4   9. e5-d4 f4xh2   10. d4-g1 X.
                                                           3. b8xg3                               h2xf4
            Se 3. ... h4xf2   4. e1xg3 h2xf4   5. g1-d4 X.
                                                           4. g1-d4                                h8xc3
                                                           5. a1xg3                               X.

Temas: Mate Cruzado e Bloqueio

121
Jogam as brancas e ganham

A solução desse problema, veja na próxima postagem

                    Estudos
                                                            SOLUÇÃO DO ESTUDO ANTERIOR

                                                                        Estudo 42

                                                           1. a3-b4                                f8-e7
            Se 1.... b8-a7   2. b4-c5 f8-e7   3. b6-c7 e7-f6   4. c7-d8 X.
                                                           2. b4-c5                                e7-f6
                                                           3. c5-d6                                b8-a7
            Se 3. ... f6-g5, ver Variante 1.
                                                           4. b6-c7                                a7-b6
            Se 4. ... f6-g5,ver Variante 2.
                                                           5. c7xa5                               f6-g5
                                                           6. d6-c7                                g5-f4
                                                           7. c7-b8                                f4-e3
            Se 7. ... f4-g3   8. b8-a7 X.
                                                           8. g1-f2                                 e3xg1
                                                           9. b8-a7                                X.

                                                           VARIANTE 1

                                                           3. ...                                       f6-g5
                                                           4. d6-e7                                g5-f4
            Se 4. ... b8-a7   5. e7-f8 a7xc5   6. f8xb4 X.
           Se 4. ... g5-h4    5. e7-f8 h4-g3    6. b6-c7  como  no  6º   lance, adiante.
            Se 4. ... b8-c7   5. b6xd8 g5-f4   6. d8-a5 f4-g3   7. a5-e1 X.
                                                           5. e7-f8                                  f4-g3
                                                           6. b6-c7                                 b8xd6
                                                           7. f8xc5                                 g3-f2
                                                           8. g1xe3                                h2-g1
                                                           9. c5-a7                                 X.

                                                           VARIANTE 2

                                                           4. ...                                       f6-g5
                                                           5. c7-d8                                g5-f4
            Se 5. … g5-h4   6. d8-a5 a7-b6   7. a5xd8 h4-g3   8. d8-h4 X.
                                                           6. d8-h4                                f4-e3
            Se 6. ... a7-b6   7. h4-e1 f4-e3  (se 7. ... b6-a5   8. d6-e7 f4-e3   9. e7-f8 X)  8. d6-e7 b6-c5   9. e7-f8 c5-d4   10. f8-g7 e3-f2   11. g1xc5 h2-g1   12. c5-d6 X.
                                                           7. h4-e1                                a7-b6
                                                           8. d6-e7                                b6-a5
                                                           9. e7-f8                                 a5-b4
            Se 9. ... e3-f2   10. e1xh4 X.
                                                        10. f8xa3                                 X.

Temas: Autobloqueio e Vaivém Branco


Estudo 43
Jogam as brancas e ganham

A solução desse estudo será dada na próxima postagem



Partidas de combinações


O grande pensador e escritor francês Poirson, disse: 
As combinações, inumeráveis e brilhantes, do Jogo de Damas,
mereciam ser admiradas em todas as idades,
como obra-prima da imaginação dos homens.*
_________________________
Cleuber Landim. “Damas e damistas”, p. 125. Brasília ─ DF. 1981.


Antônio Alves Ribeiro (RJ) X Cézar Canedo (GB)
III Interestadual
Abertura Asa Preta
 As pretas jogam e ganham

                                                           1. c3-d4                                 h6-g5
                                                           2. g3-h4                                b6-a5
                                                           3. d4-c5                                d6xb4
                                                           4. a3xc5                                c7-b6
                                                           5. e3-d4                                 g5-f4
                                                           6. f2-e3                                  g7-h6
                                                           7. e3xg5                                h6xf4
                                                           8. e1-f2                                  f8-g7
                                                           9. f2-g3?                              a5-b4!
            Ver Diagrama (acima). (JBF).
                                                        10. c5xa3                                 ...
            Ver Diagrama (abaixo), cujas cores estão invertidas. (JBF).
                                                        10. ...                                       f6-g5!
                                                        11. g3xe5                                e7-d6!
                                                        12. e5xa5                                a7-b6!
                                                        13. h4xf6                                 g7xe1
                                                        14. a5xc7                                b8xd6,
e as brancas abandonaram.
________________
* Do livro “Damas ─ Lélio I”, de Lélio Marcos L. Sarcedo, p. 99 ─ Piracicaba (SP).

 
Combinação Cézar Canedo
(Com as cores invertidas)
Jogam as brancas e ganham

            Confronte o lance 1 (branco) com o 9 (preto), etc, da partida.
                                                           1. h4-g5!                                f4xh6
                                                   2. c3-b4!                                b6xd4
                                                           3. d2-e3!                                d4xh4
                                                           4. h2-g3!                                a5xc3
                                                           5. b2xd8                                h4xf2
                                                           6. g1xe3                                X.


José Osvaldo X Portinari
Belo Horizonte ─ 1974
Abertura Naylor
As pretas jogam e ganham

                                                           1. c3-d4                                 d6-c5
                                                           2. b2-c3                                 e7-d6
                                                           3. g3-f4                                  f6-g5
                                                           4. c3-b4                                 g7-f6
                                                           5. b4-a5                                 h8-g7
                                                           6. f2-g3                                  g5-h4
                                                           7. a1-b2?                               h4xf2
                                                           8. e1xg3                                ...
            Ver Diagrama (acima). (JBF).                
                                                           8. ...                                       h6-g5!
            Ver Diagrama (abaixo), cujas cores estão invertidas. (JBF).
                                                                      9. f4xh6                                  c5-b4
                                                         10. a3xg5                                f8-e7
                                                         11. h6xd6                           c7xe1=D
                                                         12. a5xc7                                e1xa1
                                                         13. ABANDONAM.          
______________________
* Do livro “Fantásticas Proezas no Jogo de Damas”, de Miguel Cavalcante da Silva, p. 531. Rio de Janeiro ─ Brasil. 1987.

Combinação Portinari
(Com as cores invertidas)
Jogam as brancas e ganham

            Confronte o lance 1 (branco) com o 8 (preto), etc, da partida.
                                                           1. a3-b4!                                c5xa3
                                                           2. f4-g5                                  h6xb4
                                                           3. c1-d2                                 a3xe3
                                                           4. f2xd8                                 h4xf2
                                                           5. d8xh8                                X.


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