MESON Chess Problem Database

Problem Display
PID: 101256 (5k2/1R1KN1NB/r2p4/8/1Qp2B2/5R2/2pr1n2/b2b4 w - - 0 1)

Stimson, James Frank (Ua Tane)

Good Companions (October), 1918

5k2/1R1KN1NB/r2p4/8/1Qp2B2/5R2/2pr1n2/b2b4

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re2
      • 2.Be5#
  • Tries
    • 1.Sg6+?
      • 1...Kxg7
        • 2.Ke6#
      • 1...Kf7!
    • 1.Bh6+?
      • 1...Bf6
        • 2.Rxf6#
      • 1...Bxf3!
  • Keys
    • 1.Ke6!
      • threat
        • 2.Sg6#
      • 1...Re2+
        • 2.Be5#
      • 1...d5+
        • 2.Sc6#
      • 1...Kxg7
        • 2.Sg6#
      • 1...Bxg7
        • 2.Rb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(d);S_CUTB(b)::R(A)+B(C)
  • Tries
    • Try
      • S(F);CHECK,P_PINP(h)
      • Vars
        • K(i);N_SPINP(h),S_FLIGHT,XS(G)::R(D)+K(E)
      • Refutation
        • K(i);N_SPINP(h),P-FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::R(A),XB(a)
      • Refutation
        • B(b);XR(A)
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • S(F)
    • Vars
      • R(d);CHECK,S_CUTB(b)::R(A)+B(C)
      • P(h);CHECK::QAB(B)+S(F)
      • K(i);S_FLIGHT,XS(G)::R(D)+S(F)
      • B(a);SBLOCK,XS(G)::R(D)
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