MESON Chess Problem Database
Problem Display
PID: 23814 (8/3r1p2/4prp1/1N1NpR2/2nPkP2/1P2p2P/1pPbQ1K1/6B1 w - - 0 1)
Casa, Alex
diagrammes, 1996
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Kxd5
- 2.Qf3#
- 1...Rxf5
- 2.Qf3#
- 1...Rxd5
- 2.Qd3#
- 1...Sa3
- 2.Rxe5#
- 1...Sa5
- 2.Rxe5#
- 1...Sb6
- 2.Rxe5#
- 1...Sd6
- 2.Rxe5#
- 1...exd4
- 2.Qd3#
- 1...exf4
- 2.Qd3#
- 1...exd5
- 2.Qd3#
- 1...exf5
- 2.Qf3#
- 1...gxf5
- 2.Qf3#
- 1...Kxd5
- Tries
- 1.Sbc3+?
- 1...Kxd4
- 2.Qxc4#
- 1...Kxf5
- 2.Qg4#
- 1...Bxc3!
- 1...Kxd4
- 1.Sdc3+?
- 1...Kxf5
- 2.Qg4#
- 1...Bxc3!
- 1...Kxf5
- 1.Se7?
- threat
- 2.Qd3#
- 2.Qf3#
- 1...Rxf5
- 2.Qf3#
- 1...Rxd4
- 2.Qf3#
- 1...exf5
- 2.Qf3#
- 1...gxf5
- 2.Qf3#
- 1...Rxe7!
- threat
- 1.Rg5?
- threat
- 2.Qf3#
- 1...Kxd5
- 2.Qf3#
- 1...Rxf4!
- threat
- 1.Qxc4?
- threat
- 2.Rxe5#
- 1...Rxf5
- 2.dxe5#
- 1...Rxd5
- 2.Qd3#
- 1...exd4
- 2.Re5#
- 2.Qd3#
- 1...exf4
- 2.Re5#
- 2.Qd3#
- 1...exd5
- 2.Qd3#
- 1...exf5
- 2.dxe5#
- 1...gxf5
- 2.dxe5#
- 1...Kxf5!
- threat
- 1.bxc4?
- threat
- 2.Rxe5#
- 2.Qd3#
- 1...Rxf5
- 2.Qd3#
- 2.Qf3#
- 1...Rxd5
- 2.Qd3#
- 1...exd4
- 2.Re5#
- 2.Qd3#
- 1...exf4
- 2.Re5#
- 2.Qd3#
- 1...exd5
- 2.Qd3#
- 1...exf5
- 2.Qd3#
- 2.Qf3#
- 1...gxf5
- 2.Qd3#
- 2.Qf3#
- 1...Kxf5!
- threat
- 1.dxe5?
- threat
- 2.Qd3#
- 1...Kxd5
- 2.Qxc4#
- 1...Kxf5
- 2.Qd3#
- 1...Sxe5
- 2.Rxe5#
- 1...Rxd5!
- threat
- 1.fxe5?
- threat
- 2.Qf3#
- 1...Kxd5
- 2.Qf3#
- 1...Kxf5
- 2.Qg4#
- 1...Sxe5
- 2.Rxe5#
- 1...Rxf5!
- threat
- 1.Sbc3+?
- Keys
- 1.Qg4!
- threat
- 2.Sxf6#
- 1...Kxd5
- 2.Qf3#
- 1...Rxf5
- 2.Qf3#
- 1...Rxd5
- 2.fxe5#
- 1...exd5
- 2.fxe5#
- threat
- 1.Qg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- K(e);N_SPINP(c),P_SPINP(f),S_FLIGHT,XS(J)::QAB(C)
- R(h);SBLOCK,XR(K)::QAB1(C)
- R(j);SBLOCK,XS(J)::QAB1(C)
- S(d);N_GUARD::R1(K),XP(f)
- P(f);XP(G)::QAB1(C)
- P(f);XP(H)::QAB1(C)
- P(g);SBLOCK,XS(J)::QAB1(C)
- P(g);SBLOCK,XR(K)::QAB1(C)
- P(i);SBLOCK,XR(K)::QAB1(C)
- Tries
- Try
- S(I);CHECK
- Vars
- K(e);P-FLIGHT,XP(G)::QAR1(C),XS(d)
- K(e);N_SPINP(c),S_FLIGHT,XR(K)::QAB1(C)
- Refutation
- B(b);XS(I)
- Try
- S(J);CHECK
- Vars
- K(e);N_SPINP(c),S_FLIGHT,XR(K)::QAB1(C)
- Refutation
- B(b);XS(J)
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- R(h);XR(K)::QAB1(C)
- R(j);XP(G)::QAB1(C)
- P(g);XR(K)::QAB1(C)
- P(i);XR(K)::QAB1(C)
- Refutation
- R(j);XS(J)
- Try
- R(K);
- Threat
- QAB1(C)
- Vars
- K(e);N_SPINP(c),P_SPINP(f),S_FLIGHT,XS(J)::QAB(C)
- Refutation
- R(h);XP(H)
- Try
- Q(C);N_PINP(c),XS(d)
- Threat
- R1(K),XP(f)
- Vars
- R(h);SBLOCK,XR(K)::QAR(C)+P(G),XP(f)
- R(j);SBLOCK,XS(J)::QAB1(C)
- P(g);SBLOCK,XS(J)::QAB1(C)
- P(g);SBLOCK,XR(K)::QAR(C)+P(G),XP(f)
- P(i);SBLOCK,XR(K)::QAR(C)+P(G),XP(f)
- Refutation
- K(e);S_FLIGHT,XR(K)
- Try
- P(E);XS(d)
- Threat
- DUALS(2)
- Vars
- R(j);XS(J)::QAB1(C)
- P(g);XS(J)::QAB1(C)
- Refutation
- K(e);N_SPINP(c),S_FLIGHT,XR(K)
- Try
- P(G);XP(f)
- Threat
- QAB1(C)
- Vars
- K(e);N_SPINP(c),S_FLIGHT,XS(J)::QAB1(C),XS(d)
- K(e);N_SPINP(c),S_FLIGHT,XR(K)::QAB(C)
- S(d);OGATE,XP(G)::R1(K),XS(d)
- Refutation
- R(j);XS(J)
- Try
- P(H);XP(f)
- Threat
- QAB1(C)
- Vars
- K(e);N_SPINP(c),S_FLIGHT,XS(J)::QAB(C)
- K(e);N_SPINP(c),S_FLIGHT,XR(K)::QAB1(C)
- S(d);OGATE,XP(H)::R1(K),XS(d)
- Refutation
- R(h);XR(K)
- Try
- Actual
- Q(C);N_PINP(c)
- Threat
- S(J),XR(h)
- Vars
- K(e);P_SPINP(f),S_FLIGHT,XS(J)::QAB(C)
- R(h);SBLOCK,XR(K)::QAB1(C)
- R(j);SBLOCK,XS(J)::QAR(C)+P(H),XP(f)
- P(g);SBLOCK,XS(J)::QAR(C)+P(H),XP(f)
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