MESON Chess Problem Database

Problem Display
PID: 99491 (7K/N2p4/4pR1R/1P2k3/1Q6/3P1b2/5r2/8 w - - 0 1)

Bakcsi, Gyorgy

Magyar Sakkelet, 1976

7K/N2p4/4pR1R/1P2k3/1Q6/3P1b2/5r2/8

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Sc6#
      • 2.Qf4#
  • Tries
    • 1.Rf4?
      • threat
        • 2.Qd4#
      • 1...Kd5
        • 2.Qd4#
      • 1...Bd5
        • 2.Rh5#
      • 1...d5
        • 2.Sc6#
      • 1...Be4!
    • 1.Rf5+?
      • 1...exf5
        • 2.Qd6#
      • 1...Kxf5!
    • 1.Qc5+?
      • 1...d5
        • 2.Sc6#
      • 1...Bd5!
  • Keys
    • 1.Sc8!
      • threat
        • 2.Qd6#
      • 1...Kd5
        • 2.Qd6#
      • 1...Bd5
        • 2.Qc3#
      • 1...d5
        • 2.Qf4#
      • 1...d6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
        • B(b);N_GUARD,SBLOCK::R(E)
        • P(e);N_GUARD,SBLOCK,S_CUTB(b)::S(F)
      • Refutation
        • B(b);
    • Try
      • R(D);CHECK
      • Vars
        • P(d);SBLOCK,XR(D)::QAB1(B)
      • Refutation
        • K(c);P-FLIGHT,XR(D)
    • Try
      • Q(B);CHECK
      • Vars
        • P(e);P_SPINP(e)::S(F)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • S(F);
    • Threat
      • QAB1(B)
    • Vars
      • K(c);P-FLIGHT::QAR1(B)
      • B(b);SBLOCK::QAB(B)
      • P(e);SBLOCK::QAB1(B)
      • P(e);::QAB1(B),XP(e)
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