MESON Chess Problem Database

Problem Display
PID: 200692 (5n2/2Bp4/BNN5/1Pk1b3/3p1R1Q/3P4/8/K2n4 w - - 0 1)

Bakcsi, Gyorgy

The Problemist, 1983

5n2/2Bp4/BNN5/1Pk1b3/3p1R1Q/3P4/8/K2n4

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Sa4#
  • Tries
    • 1.Rf5?
      • threat
        • 2.Qxd4#
      • 1...dxc6
        • 2.Qe7#
      • 1...d5
        • 2.Sa4#
      • 1...Se6!
    • 1.Qe7+?
      • 1...Bd6
        • 2.Rf5#
        • 2.Qxd6#
      • 1...d6!
  • Keys
    • 1.Rxd4!
      • threat
        • 2.Sa4#
      • 1...Bxd4+
        • 2.Qxd4#
      • 1...Sb2
        • 2.Rd5#
      • 1...Sc3
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(e);SBLOCK::S(G)
  • Tries
    • Try
      • R(C);P_PINB(d)
      • Threat
        • QAB1(D),XP(b)
      • Vars
        • P(e);N_GUARD,XS(H)::QAB(D)
        • P(e);N_SPINB(d),SBLOCK::S(G)
      • Refutation
        • S(f);
    • Try
      • Q(D);CHECK
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • R(C);P_SPINR(C),XP(b)
    • Threat
      • S(G)
    • Vars
      • B(d);CHECK,OGATE,XR(C)::QAB1(D),XB(d)
      • S(a);N_PINR(C)::R1(C)
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