MESON Chess Problem Database

Problem Display
PID: 157187 (K2b4/7Q/8/2B5/4Bpp1/6kb/R4N1p/7R w - - 0 1)

Butler, Henry William

Design and Work, 1880

K2b4/7Q/8/2B5/4Bpp1/6kb/R4N1p/7R

#2

7 + 6

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Qxh2#
    • 1...Bg2
      • 2.Qxh2#
  • Tries
    • 1.Sd1?
      • threat
        • 2.Bf2#
      • 1...f3
        • 2.Bd6#
      • 1...Bb6!
    • 1.Sd3?
      • threat
        • 2.Bf2#
      • 1...f3
        • 2.Bd6#
      • 1...Bb6!
  • Keys
    • 1.Rxh2!
      • threat
        • 2.Sh1#
      • 1...Kxh2
        • 2.Sh1#
      • 1...f3
        • 2.Bd6#
      • 1...Bg2
        • 2.Rxg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(c);OGATE::QAB1(F),XP(a)
    • B(c);OGATE,P_PINB(D)::QAB1(F),XP(a)
  • Tries
    • Try
      • S(C);
      • Threat
        • B(E)
      • Vars
        • P(d);OGATEB::B(E)
      • Refutation
        • B(f);
    • Try
      • S(C);
      • Threat
        • B(E)
      • Vars
        • P(d);OGATEB::B(E)
      • Refutation
        • B(f);
  • Actual
    • R(A);XP(a)
    • Threat
      • S(C)
    • Vars
      • K(b);P_SPINB(c),S_FLIGHT,XR(A)::R(B)+S(C)
      • P(d);OGATEB::B(E)
      • B(c);N_GUARD,P_PINB(D)::R1(A),XB(c)
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