MESON Chess Problem Database

Problem Display
PID: 10362 (4N3/B3p3/4P1K1/3kp3/P5p1/1RPN1nP1/2P5/1Q5B w - - 0 1)

Rice, John Michael

Themes-64, 1963

4N3/B3p3/4P1K1/3kp3/P5p1/1RPN1nP1/2P5/1Q5B

#2

12 + 5

3174 The Two-move Chess Problem Tradition and Development 1966
3747 FIDE Album (1962-1964) 1968
5174 Chess Problem Spectrum 2003

SOLUTION

  • SOUND
  • Tries
    • 1.Sb4+?
      • 1...Kc4
        • 2.Qf1#
      • 1...Ke4
        • 2.Qe1#
      • 1...Kxe6!
    • 1.Rb5+?
      • 1...Kc4
        • 2.Rc5#
        • 2.Qb3#
        • 2.Qb4#
      • 1...Ke4
        • 2.Sf2#
        • 2.Rxe5#
        • 2.Qe1#
        • 2.Qb4#
      • 1...Kc6
        • 2.Sb4#
        • 2.Sxe5#
        • 2.Rc5#
      • 1...Kxe6!
    • 1.Rb6?
      • 1...Kc4
        • 2.Qb3#
      • 1...e4
        • 2.Qa2#
        • 2.Qb3#
        • 2.Qb5#
      • 1...Ke4!
    • 1.Qd1?
      • 1...Kc4
        • 2.Sb2#
      • 1...Ke4
        • 2.Sf2#
      • 1...Kc6
        • 2.Sxe5#
      • 1...Kxe6
        • 2.Sc5#
      • 1...e4!
    • 1.c4+?
      • 1...Ke4
        • 2.Sf2#
        • 2.Qe1#
      • 1...Kc6
        • 2.Sxe5#
        • 2.Rb6#
      • 1...Kxe6
        • 2.Sc5#
      • 1...Kxc4!
  • Keys
    • 1.Qa2!
      • 1...Kc4
        • 2.Ra3#
      • 1...Ke4
        • 2.Rb4#
      • 1...Kc6
        • 2.Rb6#
      • 1...Kxe6
        • 2.Rb7#
      • 1...e4
        • 2.Rb6#

This is a version

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT::QAB(A)
        • K(c);S_FLIGHT::QAR(A)
      • Refutation
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)
    • Try
      • R(D);CHECK
      • Refutation
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)
    • Try
      • R(D);
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT::S(F)
        • K(c);S_FLIGHT::S(F)
        • K(c);S_FLIGHT::S(F),XP(d)
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)::S(F)
      • Refutation
        • P(d);N_SPINS(a)
    • Try
      • P(E);CHECK
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT,XP(I)::S(F)
      • Refutation
        • K(c);N_SPINS(a),S_FLIGHT,XP(E)
  • Actual
    • Q(A);
    • Vars
      • K(c);N_SPINS(a),S_FLIGHT::QAB(A)+R(D)
      • K(c);S_FLIGHT::R(D)
      • K(c);S_FLIGHT::R1(D)
      • K(c);N_SPINS(a),S_FLIGHT,XP(I)::QAB(A)+R(D)
      • P(d);N_SPINS(a),SBLOCK::QAB(A)+R(D)
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