MESON Chess Problem Database

Problem Display
PID: 45229 (2R2B2/1Q6/2N2p2/1RrP3K/2kpp3/8/1P1b4/N7 w - - 0 1)

Eddy, Edwin John

5th HM., BCF 045. Ty., 1943-1944

2R2B2/1Q6/2N2p2/1RrP3K/2kpp3/8/1P1b4/N7

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qf7#
    • 1...Rxb5
      • 2.Se5#
    • 1...Rxd5+
      • 2.Se5#
    • 1...d3
      • 2.Rxc5#
    • 1...f5
      • 2.Se5#
  • Keys
    • 1.Qa6!
      • threat
        • 2.Rxc5#
      • 1...Rxd5+
        • 2.Se5#
      • 1...Kd3
        • 2.Rb3#
      • 1...Kxd5
        • 2.Qa2#
      • 1...Rxb5
        • 2.Sb4#
      • 1...Rxc6
        • 2.Ra5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(b);OGATEB,P_SPINR(e),S_FLIGHT,XP(D)::QAB(G)
    • R(e);XR(C)::R(H)+S(F),DCHECK
    • R(e);CHECK,XP(D)::R(H)+S(F),DCHECK
    • P(c);SBLOCK::R1(C),XR(e)
    • P(f);N_GUARD,N_PINP(D)::S(F)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)+R(C),DCHECK,XR(e)
    • Vars
      • R(e);CHECK,XP(D)::R(H)+S(F),DCHECK
      • K(b);S_FLIGHT::QAB(G)+R(C),DCHECK
      • K(b);P_SPINR(e),S_FLIGHT,XP(D)::QAB(G)
      • R(e);P_SPINR(e),XR(C)::R(H)+S(F)
      • R(e);N_GUARD,N_PINP(D),P_SPINR(e),XS(F)::QAB(G)+R(C)
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