MESON Chess Problem Database

Problem Display
PID: 75861 (8/K1ppr2Q/5Bn1/R1Pk2N1/2pN4/2p5/7b/8 w - - 0 1)

Morse, Christopher Jeremy

Busmen's Chess Review, 1963

8/K1ppr2Q/5Bn1/R1Pk2N1/2pN4/2p5/7b/8

#2

7 + 8

136 Problem Observer 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qxd7#
    • 1...Rf7
      • 2.Qxf7#
    • 1...Se5
      • 2.Qe4#
    • 1...d6
      • 2.c6#
  • Tries
    • 1.Qg8+?
      • 1...Rf7
        • 2.Qxf7#
      • 1...Re6!
  • Keys
    • 1.Sc2!
      • threat
        • 2.Sb4#
      • 1...Kc6
        • 2.Sb4#
      • 1...Re5
        • 2.Qxd7#
      • 1...Be5
        • 2.Qh1#
      • 1...Se5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(h);OGATE::QAR2(G),XP(g)
    • R(h);N_GUARD::QAB(G),XR(h)
    • S(e);OGATE::QAB1(G)
    • P(g);SBLOCK::R(B)+P(C)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • R(h);N_GUARD,P_SPINR(h)::QAB(G),XR(h)
      • Refutation
        • R(h);P_SPINR(h)
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • K(d);S_FLIGHT::S(A)
      • R(h);OGATE::QAR2(G),XP(g)
      • B(a);OGATE::QAB(G)
      • S(e);OGATE::QAB1(G)
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