MESON Chess Problem Database
Problem Display
PID: 11797 (8/8/5p2/2N2B2/7K/3ppk2/3p1pRB/3R1N1b w - - 0 1)
Valve, Leo Erland
Ensipainos, 1972
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Ke2
- 2.Bg4#
- 1...Kxg2
- 2.Be4#
- 1...Bxg2
- 2.Bg4#
- 1...e2
- 2.Be4#
- 1...Ke2
- Tries
- 1.Kh3?
- threat
- 2.Bg4#
- 1...Ke2
- 2.Bg4#
- 1...Bxg2+!
- threat
- 1.Kh5?
- 1...Ke2
- 2.Bg4#
- 1...Bxg2
- 2.Bg4#
- 1...e2
- 2.Be4#
- 1...Kxg2!
- 1...Ke2
- 1.Sb3?
- 1...Ke2
- 2.Bg4#
- 1...Kxg2
- 2.Be4#
- 1...Bxg2
- 2.Sd4#
- 1...e2!
- 1...Ke2
- 1.Bg3?
- 1...Ke2
- 2.Bg4#
- 1...Bxg2
- 2.Bg4#
- 1...e2
- 2.Be4#
- 2.Rxf2#
- 1...Kxg2!
- 1...Ke2
- 1.Bd6?
- 1...Ke2
- 2.Bg4#
- 1...Bxg2
- 2.Bg4#
- 1...e2
- 2.Be4#
- 2.Rg3#
- 1...Kxg2!
- 1...Ke2
- 1.Bc7?
- 1...Ke2
- 2.Bg4#
- 1...Bxg2
- 2.Bg4#
- 1...e2
- 2.Be4#
- 2.Rg3#
- 1...Kxg2!
- 1...Ke2
- 1.Bb8?
- 1...Ke2
- 2.Bg4#
- 1...Bxg2
- 2.Bg4#
- 1...e2
- 2.Be4#
- 2.Rg3#
- 1...Kxg2!
- 1...Ke2
- 1.Be6?
- 1...Ke2
- 2.Bg4#
- 1...Kxg2
- 2.Bd5#
- 1...Bxg2
- 2.Bg4#
- 1...e2
- 2.Bd5#
- 1...f5!
- 1...Ke2
- 1.Bg6?
- 1...Ke2
- 2.Bh5#
- 1...Kxg2
- 2.Be4#
- 1...Bxg2
- 2.Bh5#
- 1...e2
- 2.Be4#
- 1...f5!
- 1...Ke2
- 1.Bd7?
- 1...Ke2
- 2.Bg4#
- 1...Kxg2
- 2.Bc6#
- 1...Bxg2
- 2.Bg4#
- 1...e2
- 2.Bc6#
- 1...f5!
- 1...Ke2
- 1.Bc8?
- 1...Ke2
- 2.Bg4#
- 1...Kxg2
- 2.Bb7#
- 1...Bxg2
- 2.Bg4#
- 1...e2
- 2.Bb7#
- 1...f5!
- 1...Ke2
- 1.Rg6?
- 1...e2
- 2.Be4#
- 1...Bg2
- 2.Bg4#
- 1...Ke2!
- 1...e2
- 1.Rg7?
- 1...e2
- 2.Be4#
- 1...Bg2
- 2.Bg4#
- 1...Ke2!
- 1...e2
- 1.Rg8?
- 1...e2
- 2.Be4#
- 1...Bg2
- 2.Bg4#
- 1...Ke2!
- 1...e2
- 1.Kh3?
- Keys
- 1.Se6!
- 1...Ke2
- 2.Bg4#
- 1...Kxg2
- 2.Be4#
- 1...Bxg2
- 2.Sd4#
- 1...e2
- 2.Rg3#
- 1...Ke2
- 1.Se6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- K(f);S_FLIGHT,XR(C)::B(G)
- B(a);SBLOCK,XR(C)::B(G)
- P(e);SBLOCK::B(G)
- Tries
- Try
- K(E);P-FLIGHT
- Threat
- B(G)
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- Refutation
- B(a);CHECK,XR(C)
- Try
- K(E);P-FLIGHT
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- B(a);SBLOCK,XR(C)::B(G)
- P(e);SBLOCK::B(G)
- Refutation
- K(f);S_FLIGHT,XR(C)
- Try
- S(F);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- K(f);S_FLIGHT,XR(C)::B(G)
- B(a);SBLOCK,XR(C)::S(F)
- Refutation
- P(e);
- Try
- B(D);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- B(a);SBLOCK,XR(C)::B(G)
- Refutation
- K(f);S_FLIGHT,XR(C)
- Try
- B(D);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- B(a);SBLOCK,XR(C)::B(G)
- Refutation
- K(f);S_FLIGHT,XR(C)
- Try
- B(D);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- B(a);SBLOCK,XR(C)::B(G)
- Refutation
- K(f);S_FLIGHT,XR(C)
- Try
- B(D);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- B(a);SBLOCK,XR(C)::B(G)
- Refutation
- K(f);S_FLIGHT,XR(C)
- Try
- B(G);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- K(f);S_FLIGHT,XR(C)::B(G)
- B(a);SBLOCK,XR(C)::B(G)
- P(e);SBLOCK::B(G)
- Refutation
- P(g);
- Try
- B(G);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- K(f);S_FLIGHT,XR(C)::B(G)
- B(a);SBLOCK,XR(C)::B(G)
- P(e);SBLOCK::B(G)
- Refutation
- P(g);
- Try
- B(G);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- K(f);S_FLIGHT,XR(C)::B(G)
- B(a);SBLOCK,XR(C)::B(G)
- P(e);SBLOCK::B(G)
- Refutation
- P(g);
- Try
- B(G);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- K(f);S_FLIGHT,XR(C)::B(G)
- B(a);SBLOCK,XR(C)::B(G)
- P(e);SBLOCK::B(G)
- Refutation
- P(g);
- Try
- R(C);
- Vars
- P(e);SBLOCK::B(G)
- B(a);SBLOCK::B(G)
- Refutation
- K(f);S_FLIGHT
- Try
- R(C);
- Vars
- P(e);SBLOCK::B(G)
- B(a);SBLOCK::B(G)
- Refutation
- K(f);S_FLIGHT
- Try
- R(C);
- Vars
- P(e);SBLOCK::B(G)
- B(a);SBLOCK::B(G)
- Refutation
- K(f);S_FLIGHT
- Try
- Actual
- S(F);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(G)
- K(f);S_FLIGHT,XR(C)::B(G)
- B(a);SBLOCK,XR(C)::S(F)
- P(e);SBLOCK::R1(C)
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