MESON Chess Problem Database

Problem Display
PID: 19090 (5QNb/8/2p1p3/2K1k2n/8/2pP4/2r5/7b w - - 0 1)

Hirst, CA

Hampshire Post, 1912

5QNb/8/2p1p3/2K1k2n/8/2pP4/2r5/7b

#2

4 + 8

56 The Problemist 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.d4#
    • 1...Sg7
      • 2.Qf6#
  • Keys
    • 1.Se7!
      • threat
        • 2.Sg6#
      • 1...Bf6
        • 2.Qb8#
      • 1...Sf6
        • 2.Qb8#
      • 1...Rg2
        • 2.Sxc6#
      • 1...Be4
        • 2.d4#
      • 1...Sf4
        • 2.Qxh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK::P(A)
    • S(e);N_GUARD,S_CUTB(h)::QAB1(C)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • B(h);SBLOCK::QAB(C)
      • S(e);SBLOCK::QAB(C)
      • R(b);S_CUTB(a)::S(D),XP(f)
      • B(a);SBLOCK::P(A)
      • S(e);N_GUARD,SBLOCK::QAB(C),XB(h)
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