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Phénix

No. 113, Dec 2002 - SOLUTIONS

4133 - D. Innocenti
Phenix 113, Dec. 2002

The illegal positions have 2 black Pawns on the same column.

The number of solution is 15+10+10+10+15+10+15+15=100; that means a century. It was a dedication for year 2000.


4134 - W. Dittmann
Phenix 113, Dec. 2002

Retract: 1. Ke3xBd4 (Ke1) Bh8-d4++ 2. Kf3-e3 Rb7-b4+ 3. Kg3-f3 Rg7-b7+ 4. Ne2-c1

Forward: 1. Nc3#


4135 - W. Dittmann
Phenix 113, Dec. 2002

Retract: 1.Ke1xPd2(Ke1) d3-d2+ 2.Ke2xPd2(Ke1) d4-d3+ 3.Ke1-e2 d3-d2+ 4.Kb2xPa3(Ke1) Kb7-a8+ 5.Kc2-b2 Kc7-b7+ 6.Kd2-c2 Kd7-c7+ 7.Ke2-d2 Ke7-d7+ 8.Kf2-e2 Kf7-e7 9.Kg2-f2 Kg8-f7+ 10.Kg3-g2 Kh8-g8+ 11.Nf6-e4

Forward: 1.Bg7#


4136 - M. Caillaud
Phenix 113, Dec. 2002

1.h4 e6 2.Rh3 Q?#8212;h4(h2) 3.a4 g5 4.Raa3 Q?#8212;a4(a2) 5.R?#8212;h7 Qc6 6.R?#8212;f7 Rh7 7.R?#8212;f8+ K?#8212;f8(Ra1) 8.R?#8212;a7 Rf7 9.R?#8212;b7 B?#8212;b7(Rh1)


4137 - N. Dupont
Phenix 113, Dec. 2002
Dedicaded to Andrew Buchanan

1.f4 e5 2.fxe5 Bd6 3.exd6 Qg5 4.dxc7 Qxg2 5.cxb8=B Qxh1 6.Bxa7 Qd5 7.Bd4 Qxa2 8.Bxg7 Qxb2 9.Bxh8 Qxc2 10.Bhb2 Qxc1 11.Bxc1


4138 - D. Meinking
Phenix 113, Dec. 2002
Dedicated to Gianni Donati

1.a4 b6 2.a5 Ba6 3.Ra4 Bxe2 4.a6 Bg4 5.Bc4 f6 6.Bxg8 Bh3 7.Rg4 Qc8 8.d4 Qb7 9.axb7 Nc6 10.b8=N Ne5 11.Nc6 Ng6 12.Ne5 OOO 13.Nxg6 hxg6 14.Bh7


4139 - D. Innocenti
Phenix 113, Dec. 2002
This problem was later found to be cooked.

Author's solution:

1.b4 d5 2.Ba3 Kd7 3.Qc1 Kc6 4.Qb2 Kb5 5.Qxg7 Ka4 6.Nc3+ Kxa3 7.Rc1 Kb2 8.Nb1+ Kxc1 9.Qa1 Bh6 10.f4 Bxf4 11.Kf2 Bg3+ 12.Ke3 Kd1 13.Kd4 Ke1 14.Kc5 Kxf1 15.Nf3+ Kf2 16.Rc1 e5 17.Ne1 Kg1 18.Nc3 Kh1 19.Nd1 Bf2+ 20.Ne3 Bg1 21.Nd3

Dual by V. Crisan:

…18.Na3 Kh1 19.Nc4 Bf2+ 20.Ne3 Bg1 21.Nd3

Cooked by N. Pripoae and Chivu:

1.b4 d6 2.Ba3 Kd7 3.Qc1 Kc6 4.Qb2 Kb5 5.Qxg7 Ka4 6.Nc3+ Kxa3 7.Rc1 Kb2 8.f4 Kxc1 9.Qd4 e5 10.Kf2 Bh6 11.Nd5 Kd1 12.Ke3 Ke1 13.Kd3 Kxf1 14.Qa1+ Kf2 15.Nf3 Bxf4 16.Rc1 Be3 17.Ne1 Kg1 18.Kc4 Kh1 19.Nd3+ Bg1 20.Ne3 d5+ 21.Kc5

Author's correction:

4139c - Didier Innocenti
Phenix 113, Dec. 2002

1.b4 d5 2.Ba3 Kd7 3.Qc1 Kc6 4.Qb2 Kb5 5.Qxg7 Ka4 6.Nc3+ Kxa3 7.Rc1 Kb2 8.Nb1+ Kxc1 9.Qa1 Bh6 10.f4 Bxf4 11.Kf2 Be3+ 12.Kg3 Kd1 13.Kh4 Ke1 14.Kh5 Kxf1 15.Nf3+ Kf2 16.Rd1 d4 17.Ne1 Kg1 18.Nc3 Kh1 19.Nd3+ Bg1