MESON Chess Problem Database

Problem Display
PID: 10204 (4R1Q1/1r6/8/r4p2/RB3k1N/7B/6P1/1K5n w - - 0 1)

Rice, John Michael

The Tablet, 1962

(First published on Sat May 12 1962)

4R1Q1/1r6/8/r4p2/RB3k1N/7B/6P1/1K5n

#2

8 + 5

3174 The Two-move Chess Problem Tradition and Development 1966

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb4+
      • 2.Rxb4#
    • 1...Ra7
      • 2.Bd2#
      • 2.Bxa5#
      • 2.Bd6#
    • 1...Rc7
      • 2.Bd2#
      • 2.Bd6#
    • 1...Rd7
      • 2.Bd2#
      • 2.Bd6#
    • 1...Rf7
      • 2.Bd2#
      • 2.Bxa5#
      • 2.Bd6#
    • 1...Rh7
      • 2.Bd2#
      • 2.Bxa5#
      • 2.Bd6#
    • 1...Sf2
      • 2.g3#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Qg5#
      • 1...Rxb4+
        • 2.Rxb4#
      • 1...Re7
        • 2.Bd2#
      • 1...Rg7
        • 2.Bd6#
      • 1...Re5!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Qg4#
      • 1...Rxb4+
        • 2.Rxb4#
      • 1...Re7
        • 2.Bd6#
      • 1...Rg7
        • 2.Bd2#
      • 1...Sf2
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(e);CHECK,OGATE,P_SPINR(e),XB(E)::R(D),XR(e)
    • S(a);N_GUARD::P(B)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(H)
      • Vars
        • R(e);CHECK,OGATE,P_SPINR(e),XB(E)::R(D),XR(e)
        • R(e);N_PINB(E)::R(D)+B(E),DCHECK
      • Refutation
        • R(c);
  • Actual
    • S(F);XP(d)
    • Threat
      • QAR1(H)
    • Vars
      • R(e);CHECK,OGATE,P_SPINR(e),XB(E)::R(D),XR(e)
      • R(e);N_PINB(E)::R(D)+B(E),DCHECK
      • S(a);N_GUARD::QAB1(H)
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