MESON Chess Problem Database

Problem Display
PID: 179265 (6B1/4pr2/4k3/4Pr2/5P1K/4R1PQ/4N3/B2R4 w - - 0 1)

Rice, John Michael

2nd Prize, Problem Observer, 2010

6B1/4pr2/4k3/4Pr2/5P1K/4R1PQ/4N3/B2R4

#2

10 + 4

136 Problem Observer 2011

SOLUTION

  • SOUND
  • Tries
    • 1.g4?
      • threat
        • 2.gxf5#
      • 1...Rh5+
        • 2.gxh5#
      • 1...Rxf4
        • 2.Sxf4#
      • 1...Rxe5
        • 2.g5#
      • 1...Rf6
        • 2.exf6#
      • 1...Rg5!
  • Keys
    • 1.Kg4!
      • 1...Rxf4+
        • 2.Sxf4#
      • 1...Rg5+
        • 2.Kxg5#
      • 1...Rxe5
        • 2.Qh6#
      • 1...Rh5
        • 2.Kxh5#
      • 1...Rf6
        • 2.exf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(E);N_PINR(a),P_PINR(d)
      • Threat
        • P(E),XR(a)
      • Vars
        • R(a);CHECK,OGATE::QAB(F)+P(E),XR(a)
        • R(a);P_PINP(E),XP(G)::S(C),XR(a)
        • R(a);N_SPINR(d),P_SPINR(a),XP(I)::QAB(F)+P(E)
        • R(a);OGATE::R(D)+P(I),XR(a)
      • Refutation
        • R(a);
  • Actual
    • K(H);N_PINR(a),P-FLIGHT,P_PINR(d)
    • Vars
      • R(a);CHECK,XP(G)::S(C),XR(a)
      • R(a);CHECK::QAB(F)+K(H),XR(a)
      • R(a);N_GUARD,N_SPINR(d),P_SPINR(a),XP(I)::QAR(F)
      • R(a);::QAB(F)+K(H),XR(a)
      • R(a);OGATE::R(D)+P(I),XR(a)
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