MESON Chess Problem Database
Problem Display
PID: 23763 (n3B3/2p1n2b/2RPkp2/Q7/1N1p2P1/p2N4/Pb2P2B/1K2R3 w - - 0 1)
Shire, David J
Praca, 1996
#2
12 + 9
| 4849 | The Sushkov Theme | 1999 |
| 3256 | David Shire Selected Chess Problems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Bxd3+
- 2.exd3#
- 1...Bg8
- 2.Sf4#
- 2.Sc5#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Sf4#
- 2.Sc5#
- 2.Qd5#
- 1...Sxc6
- 2.Qd5#
- 1...Sg6
- 2.Sc5#
- 2.Qd5#
- 2.Qf5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...f5
- 2.Qe5#
- 1...cxd6
- 2.Rxd6#
- 1...Bxd3+
- Tries
- 1.Sc2?
- threat
- 2.Sf4#
- 1...Bxd3
- 2.exd3#
- 1...f5
- 2.Qe5#
- 1...Bc1
- 2.Sxd4#
- 1...Sd5
- 2.Sc5#
- 1...Sg6
- 2.Qf5#
- 1...Sxc6!
- threat
- 1.Rxc7?
- threat
- 2.Rxe7#
- 1...Bxd3+
- 2.exd3#
- 1...f5
- 2.Qe5#
- 1...Sd5
- 2.Bf7#
- 2.Qxd5#
- 1...Sf5
- 2.Sc5#
- 2.Bf7#
- 2.Qd5#
- 1...Sc6
- 2.Bf7#
- 2.Qd5#
- 1...Sg6
- 2.Sc5#
- 2.Bf7#
- 2.Qd5#
- 2.Qf5#
- 1...Sc8
- 2.Bf7#
- 2.Qd5#
- 1...Sg8
- 2.Bf7#
- 2.Qd5#
- 1...Sxc7!
- threat
- 1.Qxc7?
- threat
- 2.Qd7#
- 2.Qxe7#
- 2.dxe7#
- 1...Bxd3+
- 2.exd3#
- 1...Sxc6
- 2.Bf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qc8#
- 1...f5
- 2.Qxe7#
- 2.dxe7#
- 1...Be4
- 2.Qd7#
- 2.Qxe7#
- 1...Sd5
- 2.Bf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qc8#
- 1...Sf5
- 2.Sc5#
- 2.Bf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qc8#
- 1...Sg6
- 2.Sc5#
- 2.Bf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qc8#
- 1...Sc8
- 2.Bf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qxc8#
- 1...Sg8
- 2.Bf7#
- 2.Qd7#
- 2.Qf7#
- 2.Qc8#
- 1...Sb6
- 2.Qxe7#
- 2.dxe7#
- 1...Sxc7!
- threat
- 1.Qc5?
- threat
- 2.dxe7#
- 1...Bxd3+
- 2.exd3#
- 1...Sxc6
- 2.Qc4#
- 2.Qd5#
- 1...cxd6
- 2.Rxd6#
- 2.Qxd6#
- 1...Sd5
- 2.Qxd5#
- 2.dxc7#
- 2.d7#
- 1...Sf5
- 2.Sf4#
- 2.Qc4#
- 2.Qd5#
- 1...Sg6
- 2.Qc4#
- 2.Qd5#
- 2.Qf5#
- 2.dxc7#
- 2.d7#
- 1...Sc8
- 2.Qc4#
- 2.Qd5#
- 1...Sg8
- 2.Qc4#
- 2.Qd5#
- 2.dxc7#
- 2.d7#
- 1...Be4!
- threat
- 1.Qf5+?
- 1...Sxf5
- 2.Sc5#
- 1...Bxf5!
- 1...Sxf5
- 1.Qh5?
- threat
- 2.Qf7#
- 1...Bxd3+
- 2.exd3#
- 1...Bg8
- 2.Sf4#
- 2.Sc5#
- 1...Sg6
- 2.Sc5#
- 2.Qd5#
- 2.Qf5#
- 1...Bg6!
- threat
- 1.e4?
- threat
- 2.Sf4#
- 2.Sc5#
- 1...Bxe4
- 2.Rxe4#
- 1...Sxc6
- 2.Sc5#
- 2.Qd5#
- 1...f5
- 2.Qe5#
- 1...Bc1
- 2.Sc5#
- 1...Sd5
- 2.Sc5#
- 2.Qxd5#
- 2.exd5#
- 1...Sg6
- 2.Sc5#
- 2.Qd5#
- 2.Qf5#
- 1...dxe4 ep!
- threat
- 1.Sc2?
- Keys
- 1.Rc2!
- threat
- 2.Sc5#
- 1...Bxd3
- 2.exd3#
- 1...cxd6
- 2.Sf4#
- 1...f5
- 2.Qe5#
- 1...c5
- 2.Sxc5#
- threat
- 1.Rc2!
There are these versions: 225779
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- B(h);CHECK,OGATE,XS(F)::R(B)+P(D),XB(h)
- S(g);N_GUARD::QAB1(I),XS(g)
- S(g);N_GUARD,XR(J)::QAB1(I)
- S(g);N_GUARD::QAB1(I)
- P(e);N_GUARD,N_PINS(F)::QAR1(I)
- P(f);OGATE,P_SPINP(f),XP(K)::R1(J),XP(f)
- Tries
- Try
- S(G);N_SPINS(F)
- Threat
- S(F)
- Vars
- B(h);OGATE,P_PINS(G),XS(F)::R(B)+P(D),XB(h)
- P(e);N_GUARD::QAR1(I)
- B(a);N_GUARD::S(G),XP(c)
- S(g);SBLOCK::S(F)
- S(g);N_GUARD,S_CUTB(h)::QAB1(I)
- Refutation
- S(g);XR(J)
- Try
- R(J);XP(f)
- Threat
- R1(J),XS(g)
- Vars
- B(h);CHECK,OGATE,XS(F)::R(B)+P(D),XB(h)
- P(e);N_GUARD,N_PINS(F)::QAR1(I)
- Refutation
- S(i);XR(J)
- Try
- Q(I);XP(f)
- Threat
- DUALS(3)
- Vars
- B(h);CHECK,OGATE,XS(F)::R(B)+P(D),XB(h)
- Refutation
- S(i);XQ(I)
- Try
- Q(I);
- Threat
- R(J)+P(K),XS(g)
- Vars
- B(h);CHECK,OGATE,XS(F)::R(B)+P(D),XB(h)
- Refutation
- B(h);
- Try
- Q(I);CHECK,N_SPINS(F)
- Vars
- S(g);XQ(I)::S(F)
- Refutation
- B(h);P_PINS(F),XQ(I)
- Try
- Q(I);
- Threat
- QAB1(I)
- Vars
- B(h);CHECK,OGATE,XS(F)::R(B)+P(D),XB(h)
- Refutation
- B(h);
- Try
- P(D);N_SPINS(F)
- Threat
- DUALS(2)
- Vars
- B(h);OGATE,P_PINS(F),P_SPINB(h),XP(D)::R(B),XB(h)
- P(e);N_GUARD::QAR1(I)
- B(a);::S(F)
- Refutation
- P(c);EP,P_PINS(F),P_SPINP(c),XP(D)
- Try
- Actual
- R(J);N_SPINS(F)
- Threat
- S(F)
- Vars
- B(h);OGATE,P_PINR(J),XS(F)::R(B)+P(D),XB(h)
- P(f);SBLOCK,XP(K)::S(F)
- P(e);N_GUARD::QAR1(I)
- P(f);::S(F),XP(f)
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