MESON Chess Problem Database
Problem Display
PID: 252540 (q2RB3/bp3P2/3pp3/PNk2b1Q/P1p1P3/2P1p1nN/5p1B/1K1R4 w - - 0 1)
Lukasevics, Janis
Schweizerische Schachzeitung, 2004
#2
13 + 11
SOLUTION
- SOUND
- Sets
- 1...Qc8
- 2.Rxc8#
- 1...Sf1
- 2.Bxd6#
- 1...Sh1
- 2.Bxd6#
- 1...Se2
- 2.Bxd6#
- 1...Sxh5
- 2.Bxd6#
- 1...d5
- 2.f8Q#
- 2.f8B#
- 1...e5
- 2.Rd5#
- 1...Qc8
- Tries
- 1.Sf4?
- threat
- 2.Sxe6#
- 1...Qc8
- 2.Rxc8#
- 1...d5
- 2.f8Q#
- 2.f8B#
- 1...e5
- 2.Rd5#
- 1...Sxh5!
- threat
- 1.Sd4?
- threat
- 2.Sxe6#
- 1...Sxh5
- 2.Bxd6#
- 1...Qc8
- 2.Rxc8#
- 1...d5
- 2.f8Q#
- 2.f8B#
- 1...e5!
- threat
- 1.Sc7?
- threat
- 2.Sxe6#
- 1...Sxh5
- 2.Bxd6#
- 1...d5
- 2.f8Q#
- 2.f8B#
- 1...e5
- 2.Rd5#
- 1...Qc8!
- threat
- 1.Qxf5+?
- 1...d5
- 2.f8Q#
- 2.f8B#
- 1...exf5
- 2.Rd5#
- 1...e5
- 2.Rd5#
- 1...Sxf5!
- 1...d5
- 1.Qg5?
- threat
- 2.Qxe3#
- 1...Sf1
- 2.Bxd6#
- 1...Se2
- 2.Bxd6#
- 1...e2
- 2.Qe3#
- 1...d5
- 2.Qe7#
- 2.f8Q#
- 2.f8B#
- 1...f1S!
- threat
- 1.Qh8?
- threat
- 2.Qd4#
- 1...Se2
- 2.Bxd6#
- 1...e5
- 2.Rd5#
- 1...Bxe4+!
- threat
- 1.f8S?
- threat
- 2.Sxe6#
- 1...Sxh5
- 2.Bxd6#
- 1...Qc8
- 2.Rxc8#
- 1...e5
- 2.Rd5#
- 1...d5!
- threat
- 1.Sf4?
- Keys
- 1.Sg5!
- threat
- 2.Sxe6#
- 1...Bxe4+
- 2.Sxe4#
- 1...Sxh5
- 2.Bxd6#
- 1...Qc8
- 2.Rxc8#
- 1...d5
- 2.f8Q#
- 2.f8B#
- 1...e5
- 2.Rd5#
- threat
- 1.Sg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- Q(k);N_GUARD::R(L),XQ(k)
- S(c);OGATE::B(C),XP(g)
- S(c);N_SPINB(f),OGATE,XQ(J)::B(C),XP(g)
- P(g);N_SPINB(f)::P=Q
- P(h);N_GUARD,N_SPINB(f)::R1(B)
- Tries
- Try
- S(E);
- Threat
- S(E),XP(h)
- Vars
- Q(k);N_GUARD::R(L),XQ(k)
- P(g);N_SPINB(f)::P=Q
- P(h);N_GUARD,N_SPINB(f)::R1(B)
- Refutation
- S(c);N_SPINB(f),XQ(J)
- Try
- S(I);
- Threat
- S(I),XP(h)
- Vars
- S(c);N_SPINB(f),OGATE,XQ(J)::B(C),XP(g)
- Q(k);N_GUARD::R(L),XQ(k)
- P(g);N_SPINB(f)::P=Q
- Refutation
- P(h);N_SPINB(f)
- Try
- S(I);
- Threat
- S(I),XP(h)
- Vars
- S(c);N_SPINB(f),OGATE,XQ(J)::B(C),XP(g)
- P(g);N_SPINB(f)::P=Q
- P(h);N_GUARD,N_SPINB(f)::R1(B)
- Refutation
- Q(k);
- Try
- Q(J);CHECK,N_SPINP(G),XB(f)
- Vars
- P(g);P_SPINP(g),S_CUTP(h),S_CUTP(h),S_CUTS(c)::P=Q
- P(h);N_GUARD,XQ(J)::R1(B)
- P(h);N_GUARD,P_SPINP(h)::R1(B)
- Refutation
- S(c);XQ(J)
- Try
- Q(J);
- Threat
- QAB(J),XP(b)
- Vars
- S(c);OGATE::B(C),XP(g)
- P(b);::QAB(J)
- Refutation
- P(a);
- Try
- Q(J);N_PINB(f)
- Threat
- QAB1(J)
- Vars
- S(c);OGATE::B(C),XP(g)
- P(h);N_GUARD::R1(B)
- Refutation
- B(f);CHECK,XP(G)
- Try
- P(K);
- Threat
- S(K),XP(h)
- Vars
- S(c);N_SPINB(f),OGATE,XQ(J)::B(C),XP(g)
- Q(k);N_GUARD::R(L),XQ(k)
- P(h);N_GUARD,N_SPINB(f)::R1(B)
- Refutation
- P(g);N_SPINB(f)
- Try
- Actual
- S(E);N_PINB(f)
- Threat
- S(E),XP(h)
- Vars
- B(f);CHECK,XP(G)::QAR(J)+S(E),DCHECK,XB(f)
- S(c);OGATE,XQ(J)::B(C),XP(g)
- Q(k);N_GUARD::R(L),XQ(k)
- P(g);::P=Q
- P(h);N_GUARD::R1(B)
Developed and maintained by Brian Stephenson.
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