MESON Chess Problem Database

Problem Display
PID: 80850 (3B4/bpp2b2/2k1PQ2/2p1P3/2P5/1N5K/8/8 w - - 0 1)

Wigan, TK

The Field, 1949

(First published on Sat Jul 23 1949)

3B4/bpp2b2/2k1PQ2/2p1P3/2P5/1N5K/8/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kb6
      • 2.exf7#
    • 1...Bb6
      • 2.Qf3#
    • 1...Bxe6+
      • 2.Qxe6#
    • 1...b6
      • 2.Qf3#
  • Tries
    • 1.e7+?
      • 1...Be6+
        • 2.Qxe6#
      • 1...Kd7!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qxc7#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...Kb6
        • 2.Qd6#
      • 1...Bb8
        • 2.Qxc5#
      • 1...Bb6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT,P_SPINP(e)::QAR(F)+P(E),XB(f)
    • B(c);SBLOCK::QAB(F)
    • B(f);CHECK,OGATE,P_SPINB(f),XP(E)::QAR2(F),XB(f)
    • P(d);SBLOCK::QAB(F)
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • B(f);CHECK,N_GUARD,P_SPINB(f)::QAR2(F),XB(f)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAR1(F),XP(e)
    • Vars
      • B(f);CHECK,OGATE,XP(E)::QAR2(F),XB(f)
      • K(b);P-FLIGHT,P_SPINP(e)::QAR2(F)
      • B(c);N_GUARD::QAR1(F),XP(a)
      • B(c);SBLOCK::QAB1(F)
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