MESON Chess Problem Database

Problem Display
PID: 16337 (r3k3/1r2p3/BP2P3/4K3/8/8/8/Q7 w q - 0 1)

Goulding, W

Chess, 1940

r3k3/1r2p3/BP2P3/4K3/8/8/8/Q7

#2

5 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Ke4?
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...0-0-0!
    • 1.Kf4?
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...0-0-0!
    • 1.Kf5?
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...0-0-0!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...0-0-0
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAR(A)
      • Vars
        • K(d);P-FLIGHT::QAR(A)
        • K(d);P-FLIGHT::QAR2(A)
      • Refutation
        • K(d);0-0-0,P_SPINR(a)
    • Try
      • K(B);S_FLIGHT
      • Threat
        • QAR(A)
      • Vars
        • K(d);P-FLIGHT::QAR(A)
        • K(d);P-FLIGHT::QAR2(A)
      • Refutation
        • K(d);0-0-0,P_SPINR(a)
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAR(A)
      • Vars
        • K(d);P-FLIGHT::QAR(A)
        • K(d);P-FLIGHT::QAR2(A)
      • Refutation
        • K(d);0-0-0,P_SPINR(a)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • K(d);P-FLIGHT::QAR(A)
      • K(d);P-FLIGHT::QAR2(A)
      • K(d);0-0-0,OGATEB,P_SPINR(a)::QAB1(A),XR(a)
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