MESON Chess Problem Database

Problem Display
PID: 66941 (6nK/1b1p1r1p/1P6/R2Pk2P/Q3N1BP/4B1p1/8/bn2R3 w - - 0 1)

Bruch, Wieland

2nd Prize, Belliboni MT, 1994

6nK/1b1p1r1p/1P6/R2Pk2P/Q3N1BP/4B1p1/8/bn2R3

#2

11 + 9

5416 FIDE Album (1992-1994) (Annexe) 2003
23 Die Schwalbe 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qxd4#
    • 1...Bc8
      • 2.d6#
    • 1...Sc3
      • 2.Qd4#
  • Tries
    • 1.Sf6?
      • threat
        • 2.Qf4#
      • 1...Kd6
        • 2.Bc5#
      • 1...Kxf6
        • 2.Bg5#
      • 1...Rxf6
        • 2.Bf4#
      • 1...Bd4!
    • 1.Bf4+?
      • 1...Kxf4+
        • 2.Sc3#
      • 1...Rxf4!
    • 1.Qxa1+?
      • 1...Kxe4
        • 2.Qd4#
      • 1...Sc3!
  • Keys
    • 1.Bc5!
      • threat
        • 2.Bd6#
      • 1...Kf4+
        • 2.Sc3#
      • 1...Kxd5+
        • 2.Bd4#
      • 1...Rf6
        • 2.Sc3#
      • 1...d6
        • 2.Bxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::QAB1(C),XB(a)
    • B(e);N_GUARD::R(G)+P(H)
    • S(b);S_CUTB(a)::QAB1(C)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(C)
      • Vars
        • K(d);P_PINS(D),S_FLIGHT::B(B)
        • K(d);S_FLIGHT,XS(D)::B(B)
        • R(g);SBLOCK,XS(D)::R(A)+B(B),DCHECK
      • Refutation
        • B(a);
    • Try
      • B(B);CHECK
      • Vars
        • K(d);CHECK,S_FLIGHT,XB(B)::QAR(C)+S(D)
      • Refutation
        • R(g);XB(B)
    • Try
      • Q(C);CHECK,XB(a)
      • Vars
        • K(d);P-FLIGHT,XS(D)::QAR1(C)
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • B(B);
    • Threat
      • B(B)
    • Vars
      • K(d);CHECK,S_FLIGHT::QAR(C)+S(D)
      • K(d);CHECK,P-FLIGHT,XP(H)::R(G)+B(B)
      • R(g);SBLOCK::R(A)+S(D)
      • P(f);::B(B),XP(f)
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