MESON Chess Problem Database
Problem Display
PID: 15755 (3NK3/p1p2N1b/2Qbp3/2Rp1kPB/1nR5/qpB1P2n/5p2/8 w - - 0 1)
le Grand, Piet
van Gool, Johann Christoffel
2nd HM., Schach-Aktiv, 1987
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Qxe6#
- 1...Bg3
- 2.Qxe6#
- 1...Bf4
- 2.Qxe6#
- 2.e4#
- 1...Bxc5
- 2.Qxe6#
- 1...Be5
- 2.Qxe6#
- 1...Be7
- 2.Qxe6#
- 1...Bf8
- 2.Qxe6#
- 1...Bg6
- 2.Bg4#
- 1...Sf4
- 2.e4#
- 1...Sxg5
- 2.Sh6#
- 1...e5
- 2.Qd7#
- 1...Bh2
- Tries
- 1.Bd2?
- threat
- 2.e4#
- 1...Bxc5
- 2.Qxe6#
- 1...Be5
- 2.Qxe6#
- 1...e5
- 2.Qd7#
- 1...Sxg5!
- threat
- 1.Bf6?
- threat
- 2.Sh6#
- 1...Bf8
- 2.Qxe6#
- 1...Bg6
- 2.Bg4#
- 1...Sxg5!
- threat
- 1.Rf4+?
- 1...Bxf4
- 2.Qxe6#
- 1...Sxf4!
- 1...Bxf4
- 1.Rg4?
- threat
- 2.Sh6#
- 2.e4#
- 1...Bxc5
- 2.Sh6#
- 2.Qxe6#
- 1...Sxg5
- 2.Sh6#
- 1...Bf4
- 2.Qxe6#
- 1...Be5
- 2.Sh6#
- 2.Qxe6#
- 1...Bf8
- 2.Qxe6#
- 2.e4#
- 1...Bg6
- 2.e4#
- 1...e5
- 2.Sh6#
- 2.Qd7#
- 1...Sf4!
- threat
- 1.Rh4?
- threat
- 2.e4#
- 1...Bxc5
- 2.Qxe6#
- 1...Sxg5
- 2.Sh6#
- 1...Bf4
- 2.Qxe6#
- 1...Be5
- 2.Qxe6#
- 1...e5
- 2.Qd7#
- 1...Sf4!
- threat
- 1.Rxd5+?
- 1...Be5
- 2.Rxe5#
- 2.Qxe6#
- 1...exd5
- 2.Qd7#
- 1...e5
- 2.Qd7#
- 1...Sxd5!
- 1...Be5
- 1.Qd7?
- threat
- 2.Qxe6#
- 1...Sxg5
- 2.Sh6#
- 1...Sf4
- 2.e4#
- 1...Qa4!
- threat
- 1.Bd2?
- Keys
- 1.Sxe6!
- threat
- 2.Sg7#
- 1...Kxe6
- 2.Qd7#
- 1...Be5
- 2.Sh6#
- 1...Bf8
- 2.e4#
- threat
- 1.Sxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- B(h);OGATE::QAB1(G),XP(i)
- B(h);N_SPINP(f),OGATE,XR(D)::QAB1(G),XP(i)
- B(h);N_SPINP(f),OGATE::QAB1(G),XP(i)
- B(l);P_PINS(H),SBLOCK::B(F)
- S(d);SBLOCK::P(B)
- S(d);SBLOCK,XP(E)::S(H)
- P(i);N_SPINP(f),OGATEB::QAB(G)
- Tries
- Try
- B(A);
- Threat
- P(B)
- Vars
- B(h);N_SPINP(f),OGATE,XR(D)::QAB1(G),XP(i)
- B(h);N_SPINP(f),OGATE::QAB1(G),XP(i)
- P(i);N_SPINP(f),OGATEB::QAB(G)
- Refutation
- S(d);XP(E)
- Try
- B(A);
- Threat
- S(H)
- Vars
- B(h);OGATE::QAB1(G),XP(i)
- B(l);P_PINS(H),SBLOCK::B(F)
- Refutation
- S(d);XP(E)
- Try
- R(C);CHECK
- Vars
- B(h);OGATE,XR(C)::QAB1(G),XP(i)
- Refutation
- S(d);XR(C)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- S(d);XP(E)::S(H)
- B(h);OGATE::QAB1(G),XP(i)
- B(l);P_PINS(H)::P(B)
- Refutation
- S(d);
- Try
- R(C);
- Threat
- P(B)
- Vars
- B(h);N_SPINP(f),OGATE,XR(D)::QAB1(G),XP(i)
- S(d);SBLOCK,XP(E)::S(H)
- B(h);OGATE::QAB1(G),XP(i)
- B(h);N_SPINP(f),OGATE::QAB1(G),XP(i)
- P(i);N_SPINP(f),OGATEB::QAB(G)
- Refutation
- S(d);
- Try
- R(D);CHECK,XP(f)
- Vars
- P(i);S_CUTB(h),S_CUTS(e),XR(D)::QAB(G)
- P(i);P_SPINP(i),S_CUTB(h),S_CUTS(e)::QAB(G)
- Refutation
- S(e);XR(D)
- Try
- Q(G);
- Threat
- QAB1(G),XP(i)
- Vars
- S(d);SBLOCK,XP(E)::S(H)
- S(d);SBLOCK::P(B)
- Refutation
- Q(b);P_PINQ(G)
- Try
- Actual
- S(I);XP(i)
- Threat
- S(I)
- Vars
- K(g);N_SPINP(f),OGATEB,P_SPINB(h),S_FLIGHT,XS(I)::QAB1(G)
- B(h);N_SPINP(f)::S(H)
- B(h);::P(B)
Developed and maintained by Brian Stephenson.
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