MESON Chess Problem Database

Problem Display
PID: 133 (bB6/5rN1/7b/1Q4p1/R2N2kP/5R1p/1K5P/7n w - - 0 1)

Eddy, Edwin John

1st Prize, West Sussex Gazette, 1930

bB6/5rN1/7b/1Q4p1/R2N2kP/5R1p/1K5P/7n

#2

9 + 7

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh4
      • 2.Sdf5#
    • 1...Bxg7
      • 2.Qxg5#
    • 1...gxh4
      • 2.Qh5#
  • Tries
    • 1.Rg3+?
      • 1...Kxh4
        • 2.Sf3#
        • 2.Sdf5#
      • 1...Sxg3!
    • 1.Rf4+?
      • 1...gxf4
        • 2.Qh5#
      • 1...Rxf4!
    • 1.Qf5+?
      • 1...Kxh4
        • 2.Rxh3#
        • 2.Qxh3#
      • 1...Rxf5!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Rf4#
      • 1...Rb7+
        • 2.Sb5#
      • 1...Kxh4
        • 2.Sdf5#
      • 1...Rxf3
        • 2.Sc6#
      • 1...Bxf3
        • 2.Sdf5#
      • 1...gxh4
        • 2.Rg3#
      • 1...Rf4
        • 2.Rxf4#
      • 1...Rc7
        • 2.Sc6#

This is a version of 6491

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT,XP(F)::R(D)+S(E),DCHECK
    • B(e);N_GUARD,P_PINS(E),XS(H)::QAR1(G),XP(d)
    • P(d);OGATE,XP(F)::QAB1(G)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • S(a);XR(C)
    • Try
      • R(C);CHECK
      • Vars
        • P(d);OGATE,XR(C)::QAB1(G)
      • Refutation
        • R(f);XR(C)
    • Try
      • Q(G);CHECK
      • Refutation
        • R(f);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)+R(C),DCHECK
    • Vars
      • R(f);CHECK,N_GUARD,S_CUTB(g)::R(D)+S(E)
      • K(c);P-FLIGHT,XP(F)::R(D)+S(E),DCHECK
      • R(f);N_GUARD,P_SPINR(f),XR(C)::R(D)+S(E)
      • B(g);N_GUARD,P_SPINB(g),XR(C)::R(D)+S(E)
      • P(d);SBLOCK,XP(F)::QAB(G)+R(C),DCHECK
      • R(f);::QAB(G)+R(C),DCHECK,XR(f)
      • R(f);N_GUARD::R(D)+S(E)
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