MESON Chess Problem Database

Problem Display
PID: 22561 (1KB2Rb1/2P1pN2/p1Pp2n1/p2kp2N/Q1R2p2/2P5/8/8 w - - 0 1)

Bakcsi, Gyorgy

2nd Place, Pat a Mat, 1990-1991

1KB2Rb1/2P1pN2/p1Pp2n1/p2kp2N/Q1R2p2/2P5/8/8

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...e6
      • 2.Sf6#
  • Tries
    • 1.Sxd6?
      • threat
        • 2.Qd1#
      • 1...Kxd6
        • 2.Rd8#
      • 1...exd6
        • 2.Sf6#
      • 1...e4!
    • 1.Rc5+?
      • 1...dxc5
        • 2.Rd8#
      • 1...Kxc5!
    • 1.Qc2?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...e4
        • 2.Qxe4#
      • 1...Kxc4!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Qxa5#
      • 1...Kxe5
        • 2.Rf5#
      • 1...Sxe5
        • 2.Sxf4#
      • 1...dxe5
        • 2.Rd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(h);N_GUARD::S(D)
  • Tries
    • Try
      • S(G);XP(f)
      • Threat
        • QAR(B)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XS(G)::R(J)
        • P(h);N_GUARD,SBLOCK,XS(G)::S(D)
      • Refutation
        • P(d);
    • Try
      • R(C);CHECK
      • Vars
        • P(f);SBLOCK,XR(C)::R(J)
      • Refutation
        • K(c);P-FLIGHT,XR(C)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::QAB1(B),XP(d)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
  • Actual
    • S(G);XP(d)
    • Threat
      • QAR(B),XP(b)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XS(G)::R1(J)
      • S(g);N_GUARD,SBLOCK,XS(G)::S(D),XP(a)
      • P(f);OGATEB,SBLOCK,XS(G)::R(J)
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