MESON Chess Problem Database

Problem Display
PID: 46646 (8/8/8/8/8/6Q1/4P1P1/R3Kbk1 w - - 0 1)

Rice, John Michael

The Problemist, 1991

8/8/8/8/8/6Q1/4P1P1/R3Kbk1

#2

5 + 2

4883 Still More Fun with Chess Miniatures 2002
136 Problem Observer 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2
      • 2.Kxe2#
    • 1...Bxg2
      • 2.Kd2#
  • Tries
    • 1.Kd1?
      • 1...Bxe2+
        • 2.Kxe2#
      • 1...Bxg2
        • 2.Kc2#
        • 2.Kd2#
      • 1...Kh1!
    • 1.Rb1?
      • 1...Bxe2
        • 2.Kxe2#
      • 1...Bxg2
        • 2.Kd2#
      • 1...Kh1!
    • 1.Rc1?
      • 1...Bxe2
        • 2.Kxe2#
      • 1...Bxg2
        • 2.Kd2#
      • 1...Kh1!
    • 1.Rd1?
      • 1...Bxe2
        • 2.Kxe2#
      • 1...Bxg2
        • 2.Kd2#
      • 1...Kh1!
    • 1.Qh3?
      • 1...Bxe2
        • 2.Kxe2#
      • 1...Bxg2!
  • Keys
    • 1.Kd2!
      • 1...Kh1
        • 2.Rxf1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(a);XP(C)::R(A)+K(B),XB(a)
    • B(a);P_SPINB(a),XP(D)::R(A)+K(B)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • B(a);CHECK,XP(C)::R(A)+K(B),XB(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • B(a);XP(C)::R(A)+K(B),XB(a)
        • B(a);P_SPINB(a),XP(D)::R(A)+K(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • B(a);XP(C)::R(A)+K(B),XB(a)
        • B(a);P_SPINB(a),XP(D)::R(A)+K(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • B(a);XP(C)::R(A)+K(B),XB(a)
        • B(a);P_SPINB(a),XP(D)::R(A)+K(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(E);
      • Vars
        • B(a);XP(C)::R(A)+K(B),XB(a)
      • Refutation
        • B(a);XP(D)
  • Actual
    • K(B);P_PINB(a),S_FLIGHT
    • Vars
      • K(b);N_GUARD,P-FLIGHT::R(A),XB(a)
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