MESON Chess Problem Database

Problem Display
PID: 139974 (1B6/8/Q2n1p2/2b2p1R/1R1n1k2/6N1/5K2/8 w - - 0 1)

Hoek, Willem

Probleemblad, 1975

1B6/8/Q2n1p2/2b2p1R/1R1n1k2/6N1/5K2/8

#2

6 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Bxd6+?
      • 1...Kg4
        • 2.Qe2#
      • 1...Bxd6!
    • 1.Qxd6+?
      • 1...Kg4
        • 2.Qf4#
      • 1...Bxd6!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qxf5#
      • 1...Kg4
        • 2.Qf3#
      • 1...Ke5
        • 2.Qe4#
      • 1...Bxb4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);CHECK,XS(e)
      • Vars
        • K(b);P-FLIGHT::QAB(E)
      • Refutation
        • B(c);XB(F)
    • Try
      • Q(E);CHECK,XS(e)
      • Vars
        • K(b);P-FLIGHT::QAR1(E)
      • Refutation
        • B(c);P_SPINB(c),XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E),XP(d)
    • Vars
      • K(b);P-FLIGHT::QAB1(E)
      • K(b);N_SPINS(a),P_SPINP(d),P_SPINS(e),S_FLIGHT::QAR1(E)
      • B(c);N_GUARD,N_SPINS(a),P_SPINS(e),XR(C)::QAR2(E),XS(a)
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