MESON Chess Problem Database

Problem Display
PID: 248126 (3N1B2/1rp5/8/1n1kp2R/B5K1/1P1Pp1p1/2NRn3/3Qr3 w - - 0 1)

Blikeng, Bjarne

Arbejder-Skak, 1947

3N1B2/1rp5/8/1n1kp2R/B5K1/1P1Pp1p1/2NRn3/3Qr3

#2

10 + 9

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qf3#
    • 1...Sed4
      • 2.Sb4#
    • 1...Sf4
      • 2.Qf3#
    • 1...Sa3
      • 2.Bc6#
    • 1...Sc3
      • 2.Bc6#
    • 1...Sbd4
      • 2.Sxe3#
  • Tries
    • 1.Bxb5?
      • threat
        • 2.Bc4#
        • 2.Bc6#
      • 1...Rb6
        • 2.Bc4#
      • 1...Sd4
        • 2.Sb4#
        • 2.Bc4#
      • 1...c6
        • 2.Bc4#
        • 2.Bxc6#
      • 1...Rxb5!
  • Keys
    • 1.d4!
      • threat
        • 2.Rxe5#
      • 1...Ke4
        • 2.Rxe5#
      • 1...Sexd4
        • 2.Qf3#
      • 1...Sbxd4
        • 2.Bc6#

There are these versions: 248942

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • 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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