MESON Chess Problem Database

Problem Display
PID: 162126 (B7/4N2Q/bKp1R1p1/1p1PpP1n/R2pk3/8/3BP3/5r2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schach, 1986

B7/4N2Q/bKp1R1p1/1p1PpP1n/R2pk3/8/3BP3/5r2

#2

10 + 9

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...cxd5
      • 2.Bxd5#
  • Tries
    • 1.Sxg6?
      • threat
        • 2.Rxe5#
      • 1...Kxd5
        • 2.Bxc6#
      • 1...Kxf5
        • 2.Sxe5#
      • 1...Rxf5!
  • Keys
    • 1.Sxc6!
      • threat
        • 2.Rxe5#
      • 1...Kxd5
        • 2.Se7#
      • 1...Kxf5
        • 2.Qxg6#
      • 1...Rxf5
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(h);OGATE,XP(D)::B(J),XP(h)
  • Tries
    • Try
      • S(H);XP(i)
      • Threat
        • R1(G),XP(e)
      • Vars
        • K(c);N_SPINP(b),OGATEB,P_SPINP(h),S_FLIGHT,XP(D)::B(J),XP(h)
        • K(c);N_SPINP(b),S_FLIGHT,XP(E)::QAB(I)+S(H),XP(e)
      • Refutation
        • R(a);XP(E)
  • Actual
    • S(H);XP(h)
    • Threat
      • R1(G),XP(e)
    • Vars
      • K(c);N_SPINP(b),S_FLIGHT,XP(D)::B(J)+S(H),DCHECK
      • K(c);N_SPINP(b),OGATEB,P_SPINP(i),S_FLIGHT,XP(E)::QAB1(I),XP(i)
      • R(a);SBLOCK,XP(E)::R1(C),XP(b)
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