MESON Chess Problem Database

Problem Display
PID: 248942 (4N1B1/2rp4/8/2n1kp1R/1B5K/2P1Pp1p/3NRn2/4Qr2 w - - 0 1)

Blikeng, Bjarne

Arbejder-Skak, 1947

4N1B1/2rp4/8/2n1kp1R/1B5K/2P1Pp1p/3NRn2/4Qr2

#2

10 + 9

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qg3#
    • 1...Sfe4
      • 2.Sc4#
    • 1...Sg4
      • 2.Qg3#
    • 1...Sb3
      • 2.Bd6#
    • 1...Sd3
      • 2.Bd6#
    • 1...Sa4
      • 2.Bd6#
    • 1...Sce4
      • 2.Sxf3#
    • 1...Sa6
      • 2.Bd6#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.Bd4#
        • 2.Bd6#
      • 1...Rc6
        • 2.Bd4#
      • 1...Se4
        • 2.Sc4#
        • 2.Bd4#
      • 1...d6
        • 2.Bd4#
        • 2.Bxd6#
      • 1...Rxc5!
  • Keys
    • 1.e4!
      • threat
        • 2.Rxf5#
      • 1...Kf4
        • 2.Rxf5#
      • 1...Sfxe4
        • 2.Qg3#
      • 1...Scxe4
        • 2.Bd6#

This is a version of 248126

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • S(b);OGATE::QAB(A)
    • S(b);SBLOCK::S(B)
    • S(e);OGATE::B(F)
    • S(e);SBLOCK::S(B),XP(c)
  • Tries
    • Try
      • B(F);XS(e)
      • Threat
        • DUALS(2)
      • Vars
        • R(h);::B(F)
      • Refutation
        • R(h);XB(F)
  • Actual
    • P(E);
    • Threat
      • R1(H),XP(g)
    • Vars
      • K(f);N_SPINP(g),S_FLIGHT::R1(H),XP(g)
      • S(b);OGATE,P_SPINS(b),XP(E)::QAB(A)
      • S(e);OGATE,P_SPINS(e),XP(E)::B(F)
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