MESON Chess Problem Database

Problem Display
PID: 18305 (3kN3/Kn6/1Rp1Q3/Bb6/8/1n6/8/6b1 w - - 0 1)

Rice, John Michael

Time & Tide, 1954

3kN3/Kn6/1Rp1Q3/Bb6/8/1n6/8/6b1

#2

5 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb6+
      • 2.Bxb6#
    • 1...Sd4
      • 2.Rxb7#
    • 1...S3c5
      • 2.Rxb7#
    • 1...S7c5
      • 2.Rb8#
    • 1...c5
      • 2.Rd6#
  • Tries
    • 1.Qe7+?
      • 1...Kc8
        • 2.Qc7#
      • 1...Kxe7!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qd7#
      • 1...Bxb6+
        • 2.Bxb6#
      • 1...Kc7
        • 2.Qd7#
      • 1...S3c5
        • 2.Rxb7#
      • 1...S7c5
        • 2.Rb8#
      • 1...c5
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);CHECK,OGATE,P_SPINB(a),XR(B)::B(A),XB(a)
    • S(b);N_PINR(B)::B(A)+R(B),XS(e)
    • S(e);N_PINR(B)::B(A)+R(B),DCHECK
    • P(d);N_PINR(B)::B(A)+R(B),DCHECK
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);P-FLIGHT::QAR1(C)
      • Refutation
        • K(f);S_FLIGHT,XQ(C)
  • Actual
    • S(E);
    • Threat
      • QAR1(C)
    • Vars
      • B(a);CHECK,OGATE,P_SPINB(a),XR(B)::B(A),XB(a)
      • K(f);S_FLIGHT::QAR1(C)
      • S(b);N_PINR(B)::B(A)+R(B),XS(e)
      • S(e);N_PINR(B)::B(A)+R(B),DCHECK
      • P(d);N_PINR(B)::B(A)+R(B),DCHECK
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