MESON Chess Problem Database
Problem Display
PID: 44900 (BnKR2N1/2Pp2p1/2pk4/1rNP2R1/1Pr5/Q2p4/2p1P3/2B5 w - - 0 1)
le Grand, Henk
le Grand, Piet
3rd HM., Problemisten, 1985
#2
12 + 9
| 3748 | FIDE Album (1983-1985) | 1992 |
| 102 | Probleemblad | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Se4#
- 2.Bf4#
- 1...Rcxb4
- 2.Se4#
- 1...Re4
- 2.Sxe4#
- 1...Rf4
- 2.Bxf4#
- 1...Rcxc5
- 2.Bf4#
- 1...Rbxb4
- 2.Sb7#
- 1...Ra5
- 2.Sb7#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rbxc5
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rb7
- 2.Sxb7#
- 1...Sa6
- 2.Rxd7#
- 1...cxd5
- 2.Rxd5#
- 1...Rc3
- Tries
- 1.Bb7?
- threat
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rcxb4
- 2.Se4#
- 1...Rcxc5
- 2.Bf4#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rbxc5
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rxb7
- 2.Sxb7#
- 1...dxe2
- 2.cxb8Q#
- 2.cxb8B#
- 1...cxd5
- 2.Rxd5#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rd4
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rc3
- 2.Se4#
- 2.Bf4#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Re4
- 2.Sxe4#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rf4
- 2.Bxf4#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rg4
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rh4
- 2.cxb8Q#
- 2.cxb8B#
- 1...Ra5
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rb6
- 2.cxb8Q#
- 2.cxb8B#
- 1...Sa6
- 2.Rxd7#
- 1...d2
- 2.cxb8Q#
- 2.cxb8B#
- 1...g6
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rbxb4!
- threat
- 1.e4?
- threat
- 2.Bf4#
- 1...Rxe4
- 2.Sxe4#
- 1...Rbxb4
- 2.Sb7#
- 1...d2
- 2.Qg3#
- 1...Rcxb4!
- threat
- 1.cxb8S?
- threat
- 2.Rxd7#
- 1...Rcxb4
- 2.Se4#
- 1...Rbxb4
- 2.Sb7#
- 1...Rb7
- 2.Sxb7#
- 1...Rxb8+!
- threat
- 1.cxb8R?
- threat
- 2.Rxd7#
- 1...Rcxb4
- 2.Se4#
- 1...Rbxb4
- 2.Sb7#
- 1...Rb7
- 2.Sxb7#
- 1...Rxb8+!
- threat
- 1.Bb7?
- Keys
- 1.Sxd7!
- threat
- 2.Sxb8#
- 1...Rcxb4
- 2.Bf4#
- 1...Rbxb4
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rxd5
- 2.Rg6#
- 1...Sxd7
- 2.Rxd7#
- 1...cxd5
- 2.Rg6#
- 1...Sa6
- 2.Sc5#
- 2.Se5#
- 2.Sb6#
- 2.Sdf6#
- 2.Sb8#
- 2.Sf8#
- threat
- 1.Sxd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(c);N_GUARD,XP(D)::S(E)
- R(c);N_GUARD::S(E),XR(c)
- R(c);N_GUARD::B(A),XR(c)
- R(c);N_GUARD,XS(E)::B(A)
- R(d);N_GUARD,XP(D)::S(E)
- R(d);N_GUARD,XS(E)::PXS(i)=Q
- R(d);N_GUARD::S(E),XR(d)
- S(i);N_GUARD::R1(K),XP(g)
- P(e);OGATE,XP(F)::R1(G),XP(e)
- Tries
- Try
- B(I);
- Threat
- PXS(i)=Q
- Vars
- R(c);N_GUARD,XP(D)::S(E)
- R(d);XS(E)::PXS(i)=Q
- R(d);XB(I)::S(E),XR(d)
- P(b);XP(B)::PXS(i)=Q
- R(c);::PXS(i)=Q
- R(d);::PXS(i)=Q
- S(i);N_GUARD::R1(K),XP(g)
- P(b);::PXS(i)=Q
- P(h);::PXS(i)=Q
- Refutation
- R(d);XP(D)
- Try
- P(B);
- Threat
- B(A)
- Vars
- R(c);XP(B)::S(E),XR(c)
- R(d);N_GUARD,XP(D)::S(E)
- P(b);OGATE::QAB(C)
- Refutation
- R(c);XP(D)
- Try
- P(H);XS(i)
- Threat
- R1(K),XP(g)
- Vars
- R(c);N_GUARD,XP(D)::S(E)
- R(d);N_GUARD,XP(D)::S(E)
- R(d);N_GUARD::S(E),XR(d)
- Refutation
- R(d);CHECK,XS(H)
- Try
- P(H);XS(i)
- Threat
- R1(K),XP(g)
- Vars
- R(c);N_GUARD,XP(D)::S(E)
- R(d);N_GUARD,XP(D)::S(E)
- R(d);N_GUARD::S(E),XR(d)
- Refutation
- R(d);CHECK,XR(H)
- Try
- Actual
- S(E);XP(g)
- Threat
- R(K)+S(E),XS(i)
- Vars
- R(c);N_GUARD,P_SPINR(c),XP(D)::B(A)
- R(d);N_GUARD,P_SPINR(d),XP(D)::PXS(i)=Q
- R(d);SBLOCK,XP(F)::R(G)
- S(i);OGATE,P_SPINS(i),XS(E)::R1(K),XS(i)
- P(e);P_PINP(H),XP(F)::R(G)
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