MESON Chess Problem Database

Problem Display
PID: 207980 (2n4Q/2KP1pqb/4P2N/R2Nk1r1/R5p1/8/7b/2B5 w - - 0 1)

Witt, Andreas

Badische Neueste Nachrichten, 1992

2n4Q/2KP1pqb/4P2N/R2Nk1r1/R5p1/8/7b/2B5

#2

9 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Sf4#
      • 2.Qxf6#
    • 1...fxe6
      • 2.Bb2#
    • 1...f6
      • 2.Sf4#
  • Tries
    • 1.Bf4+?
      • 1...Kxe6
        • 2.dxc8Q#
        • 2.dxc8B#
        • 2.d8S#
      • 1...Bxf4!
    • 1.dxc8Q?
      • threat
        • 2.Bb2#
      • 1...f5+
        • 2.Sf7#
      • 1...f6+
        • 2.Se7#
      • 1...Bg1
        • 2.Bf4#
      • 1...fxe6+!
    • 1.dxc8B?
      • threat
        • 2.Bb2#
      • 1...f5+
        • 2.Sf7#
      • 1...f6+
        • 2.Se7#
      • 1...Bg1
        • 2.Bf4#
      • 1...fxe6+!
  • Keys
    • 1.d8S!
      • threat
        • 2.Bb2#
      • 1...fxe6+
        • 2.Sdf7#
      • 1...f5+
        • 2.Shf7#
      • 1...f6+
        • 2.Se7#
      • 1...Bg1
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);P_PINP(H),SBLOCK,XP(E)::B(A)
    • P(e);N_SPINQ(f),P_PINP(H),SBLOCK::R(C)+S(D)
  • Tries
    • Try
      • B(A);CHECK
      • Refutation
        • B(a);XB(A)
    • Try
      • P(H);XS(h)
      • Threat
        • B(A)
      • Vars
        • P(e);CHECK,SBLOCK::S(F)
        • P(e);CHECK,N_SPINQ(f),SBLOCK::R(C)+S(D)
        • B(a);N_GUARD::B(A)
      • Refutation
        • P(e);CHECK,XP(E)
    • Try
      • P(H);XS(h)
      • Threat
        • B(A)
      • Vars
        • P(e);CHECK,SBLOCK::S(F)
        • P(e);CHECK,N_SPINQ(f),SBLOCK::R(C)+S(D)
        • B(a);N_GUARD::B(A)
      • Refutation
        • P(e);CHECK,XP(E)
  • Actual
    • P(H);
    • Threat
      • B(A)
    • Vars
      • P(e);CHECK,SBLOCK,XP(E)::S(H)
      • P(e);CHECK,SBLOCK::S(F)
      • P(e);CHECK,N_SPINQ(f),SBLOCK::R(C)+S(D)
      • B(a);N_GUARD::B(A)
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