MESON Chess Problem Database

Problem Display
PID: 23179 (4k3/1K1R3Q/8/7b/6p1/b7/8/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

4k3/1K1R3Q/8/7b/6p1/b7/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qh8#
    • 1...Bc1
      • 2.Qe7#
    • 1...Bb2
      • 2.Qe7#
    • 1...Be7
      • 2.Qxe7#
    • 1...Bf7
      • 2.Qxf7#
  • Tries
    • 1.Kc7?
      • threat
        • 2.Rd8#
      • 1...Kf8
        • 2.Qh8#
      • 1...Be7
        • 2.Qxe7#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Bd6+!
    • 1.Rc7?
      • threat
        • 2.Rc8#
      • 1...Kd8
        • 2.Rc8#
        • 2.Qd7#
      • 1...Kf8
        • 2.Qh8#
      • 1...Be7
        • 2.Qxe7#
      • 1...Bf7!
    • 1.Qxh5+?
      • 1...Kf8
        • 2.Qf7#
        • 2.Qh8#
      • 1...Kxd7!
  • Keys
    • 1.Kc8!
      • threat
        • 2.Rd8#
      • 1...Kf8
        • 2.Qh8#
      • 1...Be7
        • 2.Qxe7#
      • 1...Bf7
        • 2.Qxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • K(d);P-FLIGHT::QAR2(C)
    • B(a);N_GUARD::QAR1(C)
    • B(a);N_GUARD::QAR1(C),XB(a)
    • B(c);N_GUARD::QAB1(C),XB(c)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • R1(B)
      • Vars
        • K(d);P-FLIGHT::QAR2(C)
        • B(a);N_GUARD::QAR1(C),XB(a)
        • B(c);N_GUARD::QAB1(C),XB(c)
      • Refutation
        • B(a);CHECK
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(d);P-FLIGHT::QAR2(C)
        • B(a);N_GUARD::QAR1(C),XB(a)
      • Refutation
        • B(c);
    • Try
      • Q(C);CHECK,XB(c)
      • Refutation
        • K(d);S_FLIGHT,XR(B)
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • R1(B)
    • Vars
      • K(d);P-FLIGHT::QAR2(C)
      • B(a);N_GUARD::QAR1(C),XB(a)
      • B(c);N_GUARD::QAB1(C),XB(c)
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