MESON Chess Problem Database
Problem Display
PID: 92127 (1b2Q3/8/3pN3/2pkp3/5P2/1P5p/N3R1nK/Bn5B w - - 0 1)
Wielgos, Oskar
Schach-Echo, 1983
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...c4
- 2.Sb4#
- 1...exf4
- 2.Sxf4#
- 1...Ba7
- Tries
- 1.Kxh3?
- 1...exf4
- 2.Sxf4#
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...c4
- 2.Sb4#
- 1...e4!
- 1...exf4
- 1.Sd8?
- threat
- 2.Qc6#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 1...c4
- 2.Qb5#
- 2.Qc6#
- 1...Sc3!
- threat
- 1.Bb2?
- 1...exf4
- 2.Sxf4#
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...c4
- 2.Sb4#
- 1...e4!
- 1...exf4
- 1.Bxe5?
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...c4
- 2.Sb4#
- 1...dxe5!
- 1...Ba7
- 1.Bxg2+?
- 1...e4
- 2.Bxe4#
- 1...hxg2!
- 1...e4
- 1.Re1?
- 1...exf4
- 2.Sxf4#
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...c4
- 2.Sb4#
- 1...e4!
- 1...exf4
- 1.Rd2+?
- 1...Sxd2
- 2.Sc3#
- 1...Ke4!
- 1...Sxd2
- 1.Re3?
- 1...exf4
- 2.Sxf4#
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...c4
- 2.Sb4#
- 1...e4!
- 1...exf4
- 1.Qd7?
- threat
- 2.Rxe5#
- 1...exf4
- 2.Sxf4#
- 2.Re5#
- 2.Qb7#
- 1...e4!
- threat
- 1.fxe5?
- threat
- 2.Sf4#
- 1...Sc3
- 2.Sxc3#
- 1...c4
- 2.Sb4#
- 1...dxe5!
- threat
- 1.f5?
- 1...Ba7
- 2.Sc7#
- 2.Qa8#
- 1...Bc7
- 2.Sxc7#
- 2.Qa8#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...c4
- 2.Sb4#
- 2.Qb5#
- 1...e4!
- 1...Ba7
- 1.Kxh3?
- Keys
- 1.Sg5!
- 1...exf4
- 2.Qe4#
- 1...Sc3
- 2.Rd2#
- 1...c4
- 2.Qb5#
- 1...e4
- 2.Qxe4#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Sd2
- 2.Rxd2#
- 1...Sa3
- 2.Rd2#
- 1...exf4
- 1.Sg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(h);N_GUARD::S(H)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- P(f);XP(G)::S(H),XP(f)
- Tries
- Try
- K(E);P-FLIGHT,XP(c)
- Vars
- P(f);XP(G)::S(H),XP(f)
- B(h);N_GUARD::S(H)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- P(f);N_SPINS(b)
- Try
- S(H);
- Threat
- DUALS(4)
- Refutation
- S(a);
- Try
- B(A);
- Vars
- P(f);XP(G)::S(H),XP(f)
- B(h);N_GUARD::S(H)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- P(f);N_SPINS(b)
- Try
- B(A);XP(f)
- Vars
- B(h);N_GUARD::S(H)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- P(g);XB(A)
- Try
- B(B);CHECK,XS(b)
- Vars
- P(f);P_SPINP(f)::B(B),XP(f)
- Refutation
- P(c);XB(B)
- Try
- R(D);
- Vars
- P(f);XP(G)::S(H),XP(f)
- B(h);N_GUARD::S(H)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- P(f);N_SPINS(b)
- Try
- R(D);CHECK
- Vars
- S(a);XR(D)::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- R(D);
- Vars
- P(f);XP(G)::S(H),XP(f)
- B(h);N_GUARD::S(H)
- B(h);N_GUARD::S(H),XB(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- P(f);N_SPINS(b)
- Try
- Q(I);P_PINP(g)
- Threat
- R1(D),XP(f)
- Refutation
- P(f);N_SPINS(b)
- Try
- P(G);XP(f)
- Threat
- S(H)
- Vars
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- P(g);XP(G)
- Try
- P(G);
- Vars
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- P(f);N_SPINS(b)
- Try
- Actual
- S(H);
- Vars
- P(f);OGATE,XP(G)::QAB1(I)
- S(a);N_GUARD::R(D)
- P(d);OGATEB::QAR2(I)
- P(f);N_SPINS(b),OGATE::QAB1(I),XP(f)
- B(h);OGATE::QAB(I)
- S(a);N_GUARD::R(D),XS(a)
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