MESON Chess Problem Database

Problem Display
PID: 47583 (3Q2b1/p2R2K1/2pNpP2/P5NR/2PkP3/1Ppr4/2p2P2/8 w - - 0 1)

Gvozdjak, Peter

Labai, Zoltan

The Problemist, 1992

3Q2b1/p2R2K1/2pNpP2/P5NR/2PkP3/1Ppr4/2p2P2/8

#2

12 + 8

3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Bh7
      • 2.Sxe6#
    • 1...c5
      • 2.Sdf7#
  • Tries
    • 1.Qb6+?
      • 1...Ke5
        • 2.Sh3#
      • 1...c5
        • 2.Sdf7#
      • 1...axb6!
    • 1.Qb8?
      • threat
        • 2.Sb7#
      • 1...Kc5
        • 2.Sxe6#
      • 1...Ke5
        • 2.Sdf7#
      • 1...e5!
    • 1.Qf8?
      • threat
        • 2.Sdf7#
      • 1...Kc5
        • 2.Sb7#
      • 1...Bf7
        • 2.Sdxf7#
      • 1...Ke5!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Sdf7#
      • 1...Kc5
        • 2.Sb7#
      • 1...Ke5
        • 2.Sxe6#
      • 1...Bf7
        • 2.Sdxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(h);N_GUARD::S(F),XP(f)
    • P(e);SBLOCK::R(J)+S(H)
  • Tries
    • Try
      • Q(L);CHECK
      • Vars
        • K(d);S_FLIGHT::R(G)+S(F)
        • P(e);P_SPINP(e)::R(J)+S(H)
      • Refutation
        • P(g);XQ(L)
    • Try
      • Q(L);
      • Threat
        • R(J)+S(H)
      • Vars
        • K(d);S_FLIGHT::R(G)+S(F),DCHECK,XP(f)
        • K(d);S_FLIGHT::QAB(L)+S(H),DCHECK
      • Refutation
        • P(f);
    • Try
      • Q(L);
      • Threat
        • R(J)+S(H)
      • Vars
        • K(d);S_FLIGHT::QAB(L)+S(H),DCHECK
        • B(h);::R(J)+S(H),XB(h)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(L);
    • Threat
      • R(J)+S(H)
    • Vars
      • K(d);S_FLIGHT::QAB(L)+S(H),DCHECK
      • K(d);P_SPINP(f),S_FLIGHT::R(G)+S(F),XP(f)
      • B(h);::R(J)+S(H),XB(h)
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