MESON Chess Problem Database
Problem Display
PID: 102803 (8/3p1p2/2prb3/1ppk1pp1/2R1R3/1p1P4/1K4P1/3Q4 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Die Schwalbe, 2008
#2
6 + 11
SOLUTION
- SOUND
- Tries
- 1.Qe2?
- threat
- 2.Re5#
- 1...bxc4
- 2.dxc4#
- 1...fxe4
- 2.Qxe4#
- 1...f6!
- threat
- 1.Qxb3?
- threat
- 2.Rcd4#
- 1...bxc4
- 2.Qxc4#
- 1...fxe4!
- threat
- 1.Qf3?
- threat
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 1...bxc4
- 2.dxc4#
- 1...fxe4
- 2.Qxe4#
- 1...g4!
- threat
- 1.Qc1?
- threat
- 2.Rxc5#
- 1...bxc4
- 2.Qxc4#
- 1...fxe4!
- threat
- 1.Qe1?
- threat
- 2.Re5#
- 1...bxc4
- 2.dxc4#
- 1...fxe4
- 2.Qxe4#
- 1...f6!
- threat
- 1.Qe2?
- Keys
- 1.d4!
- threat
- 2.dxc5#
- 1...Kxc4
- 2.Qxb3#
- 1...Kxe4
- 2.Qf3#
- 1...bxc4
- 2.Re5#
- 1...cxd4
- 2.Qxd4#
- 1...fxe4
- 2.Rxc5#
- threat
- 1.d4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(A);
- Threat
- R1(F)
- Vars
- P(b);OGATE,XR(E)::P(D),XP(b)
- P(e);OGATE,XR(F)::QAB1(A),XP(e)
- Refutation
- P(k);
- Try
- Q(A);XP(a)
- Threat
- QAB(A)+R(E),DCHECK
- Vars
- P(b);OGATE,P_SPINP(b),XR(E)::QAB1(A),XP(b)
- Refutation
- P(e);XR(F)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- P(b);OGATE,XR(E)::P(D),XP(b)
- P(e);OGATE,P_SPINP(e),XR(F)::QAB1(A),XP(e)
- Refutation
- P(f);
- Try
- Q(A);
- Threat
- R1(E),XP(c)
- Vars
- P(b);OGATE,XR(E)::QAB1(A),XP(b)
- Refutation
- P(e);XR(F)
- Try
- Q(A);
- Threat
- R1(F)
- Vars
- P(b);OGATE,XR(E)::P(D),XP(b)
- P(e);OGATE,XR(F)::QAB1(A),XP(e)
- Refutation
- P(k);
- Try
- Actual
- P(D);
- Threat
- QAR(A)+P(D),XP(c)
- Vars
- K(d);OGATEB,S_FLIGHT,XR(E)::QAB1(A),XP(a)
- K(d);OGATEB,S_FLIGHT,XR(F)::QAB1(A)
- P(b);SBLOCK,XR(E)::R1(F)
- P(c);OGATE,P_SPINP(c),XP(D)::QAR1(A),XP(c)
- P(e);SBLOCK,XR(F)::R1(E),XP(c)
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