MESON Chess Problem Database

Problem Display
PID: 247917 (1B1R4/6b1/K1p1pp2/2p1Np2/2N1knp1/4P2R/Q4n1q/3B1b2 w - - 0 1)

Blikeng, Bjarne

1st HM., Thema Danicum, 1979

1B1R4/6b1/K1p1pp2/2p1Np2/2N1knp1/4P2R/Q4n1q/3B1b2

#2

9 + 12

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Sd2#
    • 1...Bxc4+
      • 2.Qxc4#
    • 1...Se2
      • 2.Sd2#
    • 1...Sd3
      • 2.Sd2#
    • 1...gxh3
      • 2.Bf3#
    • 1...g3
      • 2.Bf3#
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sxc5#
      • 1...Bxc4+
        • 2.Qxc4#
      • 1...Kd3
        • 2.Qc2#
      • 1...Kd5
        • 2.Sxf6#
      • 1...Bf8
        • 2.Sxf6#
      • 1...S2d3
        • 2.Sd6#
      • 1...S4d3
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • B(a);N_PINS(E)::S(E)
    • B(a);CHECK,OGATE,XS(E)::QAR2(B),XB(a)
    • S(e);N_PINS(E)::S(E)
    • P(f);N_GUARD,XR(D)::B(A)
    • P(f);N_GUARD::B(A)
  • Actual
    • S(F);
    • Threat
      • S(F),XP(g)
    • Vars
      • B(a);CHECK,OGATE,XS(E)::QAR2(B),XB(a)
      • K(d);N_PINS(E),S_FLIGHT::QAB1(B)
      • K(d);S_FLIGHT::R(I)+S(F),DCHECK,XP(k)
      • B(l);N_GUARD::S(F),XP(k)
      • S(b);N_PINS(E),SBLOCK::S(E)
      • S(e);N_PINS(E),SBLOCK::S(E)
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Developed and maintained by Brian Stephenson.
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