MESON Chess Problem Database

Problem Display
PID: 239868 (2k1N2Q/5K2/8/b1N5/7B/8/8/8 w - - 0 1)

Speckmann, Werner

Themes-64, 1966

2k1N2Q/5K2/8/b1N5/7B/8/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bc7
      • 2.Sd6#
  • Tries
    • 1.Sg7+?
      • 1...Bd8
        • 2.Qxd8#
      • 1...Kc7!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Sc7#
      • 1...Kd8
        • 2.Sf6#
        • 2.Sc7#
        • 2.Sg7#
      • 1...Bc7
        • 2.Sd6#
        • 2.Sxc7#
      • 1...Bc3
        • 2.Sf6#
        • 2.Sg7#
      • 1...Bd8
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK::QAR(E)+S(D),DCHECK
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR1(E),XB(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(A);
    • Threat
      • QAR(E)+S(D)
    • Vars
      • B(a);SBLOCK::QAB(E)
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