MESON Chess Problem Database

Problem Display
PID: 267219 (K7/8/4p3/4P3/3Pk3/5p1R/B1R4Q/B7 w - - 0 1)

Rice, John Michael

The Problemist, 1955

K7/8/4p3/4P3/3Pk3/5p1R/B1R4Q/B7

#2

8 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qe2#
  • Tries
    • 1.Bxe6?
      • 1...Kd3
        • 2.Qe2#
      • 1...f2
        • 2.Re2#
      • 1...Ke3!
    • 1.Rh4+?
      • 1...Kd3
        • 2.Rc3#
        • 2.Qd2#
      • 1...Ke3
        • 2.Rc3#
        • 2.Qd2#
      • 1...Kf5!
    • 1.Qf4+?
      • 1...Kd3
        • 2.Rd2#
      • 1...Kxf4!
  • Keys
    • 1.Bb1!
      • 1...Kd3
        • 2.Qe2#
      • 1...Ke3
        • 2.Re2#
      • 1...Kd5
        • 2.Rc5#
      • 1...Kf5
        • 2.Rg2#
      • 1...f2
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAB1(D)
  • Tries
    • Try
      • B(B);XP(c)
      • Vars
        • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAB1(D)
        • P(a);N_GUARD::R(C)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • R(E);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::R1(C)
      • Refutation
        • K(b);P-FLIGHT,XQ(D)
  • Actual
    • B(B);
    • Vars
      • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAB1(D)
      • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R1(C)
      • K(b);N_GUARD,S_FLIGHT::R1(C)
      • K(b);N_GUARD,S_FLIGHT::B(B)+R(C)
      • P(a);::B(B)+R(C)
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