MESON Chess Problem Database
Problem Display
PID: 92143 (8/2p4p/2Kp1R1b/1Rn1N1pQ/3rk2r/3N4/2B2P2/Bn3b1q w - - 0 1)
Wielgos, Oskar
Deutsche Schachblatter, 1985
#2
9 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qf3
- 2.Qxf3#
- 1...Qg1
- 2.Qf3#
- 1...Qh2
- 2.Qf3#
- 1...Rxd3
- 2.Rb4#
- 1...Ra4
- 2.Sxc5#
- 1...Rb4
- 2.Sxc5#
- 2.Rxb4#
- 1...Rc4
- 2.Sxc5#
- 1...Rd5
- 2.Sxc5#
- 1...Rh2
- 2.Qg4#
- 1...Rh3
- 2.Qg4#
- 1...Rg4
- 2.Qxg4#
- 1...Be2
- 2.Qxe2#
- 1...Bg2
- 2.Qe2#
- 1...Bxd3
- 2.Qe2#
- 1...Bh3
- 2.Qe2#
- 1...g4
- 2.Sxc5#
- 2.Qf5#
- 1...dxe5
- 2.Sxc5#
- 1...Qf3
- Tries
- 1.Sf3?
- threat
- 2.Sxc5#
- 1...Qxf3
- 2.Qxf3#
- 1...Rxd3
- 2.Rb4#
- 1...Sxd3
- 2.Qe8#
- 1...Sb3
- 2.Sc5#
- 2.Re6#
- 2.Qe8#
- 1...Sa4
- 2.Sc5#
- 2.Re6#
- 2.Qe8#
- 1...Sa6
- 2.Sc5#
- 2.Re6#
- 2.Qe8#
- 1...Se6
- 2.Sc5#
- 2.Rxe6#
- 1...Sb7
- 2.Sc5#
- 2.Re6#
- 2.Qe8#
- 1...Sd7
- 2.Sc5#
- 1...Bxd3!
- threat
- 1.Sc4?
- threat
- 2.Sxc5#
- 1...Bxd3
- 2.Qe2#
- 1...Sxd3
- 2.Qe8#
- 1...Sb3
- 2.Sc5#
- 2.Re6#
- 2.Qe8#
- 1...Sa4
- 2.Sc5#
- 2.Re6#
- 2.Qe8#
- 1...Sa6
- 2.Sc5#
- 2.Re6#
- 2.Qe8#
- 1...Se6
- 2.Sc5#
- 2.Rxe6#
- 1...Sb7
- 2.Sc5#
- 2.Re6#
- 2.Qe8#
- 1...Sd7
- 2.Sc5#
- 1...Rxd3!
- threat
- 1.Sg4?
- threat
- 2.Sxc5#
- 1...Rxd3
- 2.Rb4#
- 1...Rxg4
- 2.Qxg4#
- 1...Sxd3
- 2.Qe8#
- 1...Sb3
- 2.Sc5#
- 2.Qe8#
- 1...Sa4
- 2.Sc5#
- 2.Qe8#
- 1...Sa6
- 2.Sc5#
- 2.Qe8#
- 1...Se6
- 2.Sc5#
- 1...Sb7
- 2.Sc5#
- 2.Qe8#
- 1...Sd7
- 2.Sc5#
- 1...Bxd3!
- threat
- 1.Sd7?
- threat
- 2.S3xc5#
- 1...Rxd3
- 2.Rb4#
- 1...Bxd3
- 2.Qe2#
- 1...Sxd3
- 2.Qe8#
- 1...Sb3
- 2.S3c5#
- 2.Re6#
- 2.Qe8#
- 1...Sa4
- 2.S3c5#
- 2.Re6#
- 2.Qe8#
- 1...Sa6
- 2.S3c5#
- 2.Re6#
- 2.Qe8#
- 1...Se6
- 2.S3c5#
- 2.Rxe6#
- 1...Sb7
- 2.S3c5#
- 2.Re6#
- 2.Qe8#
- 1...Sxd7!
- threat
- 1.Sf7?
- threat
- 2.Sxc5#
- 1...Rxd3
- 2.Rb4#
- 1...Bxd3
- 2.Qe2#
- 1...Sb3
- 2.Sc5#
- 2.Re6#
- 1...Sa4
- 2.Sc5#
- 2.Re6#
- 1...Sa6
- 2.Sc5#
- 2.Re6#
- 1...Se6
- 2.Sc5#
- 2.Rxe6#
- 1...Sb7
- 2.Sc5#
- 2.Re6#
- 1...Sd7
- 2.Sc5#
- 1...Sxd3!
- threat
- 1.Rf4+?
- 1...gxf4
- 2.Sxc5#
- 1...Rxf4!
- 1...gxf4
- 1.Qxg5?
- threat
- 2.Sxc5#
- 2.Qf5#
- 1...Rxd3
- 2.Rb4#
- 2.Qf5#
- 1...Bxd3
- 2.Qf5#
- 1...Sxd3
- 2.Qf5#
- 1...Qf3
- 2.Sxc5#
- 1...Qh3
- 2.Sxc5#
- 1...Rf4
- 2.Sxc5#
- 2.Rxf4#
- 1...Rh5
- 2.Sxc5#
- 2.Rf4#
- 1...Bh3
- 2.Sxc5#
- 1...Sb3
- 2.Sc5#
- 2.Qf5#
- 1...Sa4
- 2.Sc5#
- 2.Qf5#
- 1...Sa6
- 2.Sc5#
- 2.Qf5#
- 1...Se6
- 2.Sc5#
- 2.Qf5#
- 1...Sb7
- 2.Sc5#
- 2.Qf5#
- 1...Sd7
- 2.Sc5#
- 2.Qf5#
- 1...Bxg5!
- threat
- 1.f3+?
- 1...Qxf3
- 2.Qxf3#
- 1...Ke3!
- 1...Qxf3
- 1.Sf3?
- Keys
- 1.Sg6!
- threat
- 2.Sxc5#
- 1...Rxd3
- 2.Rb4#
- 1...Bxd3
- 2.Qe2#
- 1...Sxd3
- 2.Re6#
- 1...hxg6
- 2.Qxg6#
- 1...Sb3
- 2.Sc5#
- 2.Re6#
- 1...Sa4
- 2.Sc5#
- 2.Re6#
- 1...Sa6
- 2.Sc5#
- 2.Re6#
- 1...Se6
- 2.Sc5#
- 2.Rxe6#
- 1...Sb7
- 2.Sc5#
- 2.Re6#
- 1...Sd7
- 2.Sc5#
- threat
- 1.Sg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 13
- Sets
- Q(c);N_GUARD::QAB1(G),XQ(c)
- Q(c);N_GUARD::QAB1(G)
- R(d);OGATEB,P_SPINR(d),XS(D)::R(E)
- R(d);::B(B)+S(D),DCHECK,XS(g)
- R(f);N_GUARD::QAR2(G)
- R(f);N_GUARD::QAR2(G),XR(f)
- B(b);N_GUARD::QAR2(G),XB(b)
- B(b);N_GUARD::QAR2(G)
- B(b);N_GUARD,P_SPINB(b),XS(D)::QAR2(G)
- P(i);SBLOCK,XS(F)::B(B)+S(D),DCHECK,XS(g)
- Tries
- Try
- S(F);
- Threat
- B(B)+S(D),DCHECK,XS(g)
- Vars
- Q(c);OGATE,XS(F)::QAB1(G),XQ(c)
- R(d);OGATEB,P_SPINR(d),XS(D)::R(E)
- S(g);N_GUARD,P_SPINS(g),XS(D)::QAR(G)
- S(g);::B(B)+S(D),DCHECK
- Refutation
- B(b);P_SPINB(b),XS(D)
- Try
- S(F);
- Threat
- B(B)+S(D),DCHECK,XS(g)
- Vars
- B(b);N_GUARD,P_SPINB(b),XS(D)::QAR2(G)
- S(g);N_GUARD,P_SPINS(g),XS(D)::QAR(G)
- S(g);::B(B)+S(D),DCHECK
- Refutation
- R(d);P_SPINR(d),XS(D)
- Try
- S(F);
- Threat
- B(B)+S(D),DCHECK,XS(g)
- Vars
- R(d);OGATEB,P_SPINR(d),XS(D)::R(E)
- R(f);OGATE,XS(F)::QAR2(G),XR(f)
- S(g);N_GUARD,P_SPINS(g),XS(D)::QAR(G)
- S(g);::B(B)+S(D),DCHECK
- Refutation
- B(b);P_SPINB(b),XS(D)
- Try
- S(F);
- Threat
- B(B)+S(D),DCHECK,XS(g)
- Vars
- R(d);OGATEB,P_SPINR(d),XS(D)::R(E)
- B(b);N_GUARD,P_SPINB(b),XS(D)::QAR2(G)
- S(g);N_GUARD,P_SPINS(g),XS(D)::QAR(G)
- Refutation
- S(g);XS(F)
- Try
- S(F);
- Threat
- B(B)+S(D),DCHECK,XS(g)
- Vars
- R(d);OGATEB,P_SPINR(d),XS(D)::R(E)
- B(b);N_GUARD,P_SPINB(b),XS(D)::QAR2(G)
- S(g);::B(B)+S(D),DCHECK
- Refutation
- S(g);P_SPINS(g),XS(D)
- Try
- R(I);CHECK
- Vars
- P(h);SBLOCK,XR(I)::B(B)+S(D),DCHECK,XS(g)
- Refutation
- R(f);XR(I)
- Try
- Q(G);XP(h)
- Threat
- DUALS(2)
- Vars
- B(b);P_SPINB(b),XS(D)::QAB1(G)
- S(g);P_SPINS(g),XS(D)::QAB1(G)
- Q(c);::B(B)+S(D),DCHECK,XS(g)
- B(b);::B(B)+S(D),DCHECK,XS(g)
- Refutation
- B(j);XQ(G)
- Try
- P(C);CHECK
- Vars
- Q(c);OGATE,XP(C)::QAB1(G),XQ(c)
- Refutation
- K(e);P-FLIGHT,P_PINP(C)
- Try
- Actual
- S(F);
- Threat
- B(B)+S(D),DCHECK,XS(g)
- Vars
- R(d);OGATEB,P_SPINR(d),XS(D)::R(E)
- B(b);N_GUARD,P_SPINB(b),XS(D)::QAR2(G)
- S(g);N_GUARD,P_SPINS(g),XS(D)::R(I)
- P(l);OGATE,XS(F)::QAB(G),XP(l)
- S(g);::B(B)+S(D),DCHECK
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