MESON Chess Problem Database

Problem Display
PID: 38400 (8/B2K1N2/B1P5/1n1k4/Np5r/1Pb2P2/3rn2R/2Q1R3 w - - 0 1)

Karlstrom, Alfred Olaf

2nd HM., BCF 016. Ty., 1934-1935

8/B2K1N2/B1P5/1n1k4/Np5r/1Pb2P2/3rn2R/2Q1R3

#2

11 + 7

56 The Problemist 2009
102 Probleemblad 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rdd4
      • 2.Qg5#
    • 1...Rhd4
      • 2.Rh5#
    • 1...Ba1
      • 2.Qc5#
    • 1...Bb2
      • 2.Qc5#
    • 1...Bd4
      • 2.Qc4#
    • 1...Be5
      • 2.Qc5#
    • 1...Bf6
      • 2.Qc5#
    • 1...Bg7
      • 2.Qc5#
    • 1...Bh8
      • 2.Qc5#
    • 1...Sed4
      • 2.Re5#
    • 1...Sbd4
      • 2.Bc4#
  • Tries
    • 1.Bg1?
      • threat
        • 2.Sb6#
      • 1...Rdd4
        • 2.Qg5#
      • 1...Rhd4
        • 2.Rh5#
      • 1...Bd4
        • 2.Qc4#
      • 1...Sed4
        • 2.Re5#
      • 1...Sbd4
        • 2.Bc4#
      • 1...Sxg1!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Sb6#
      • 1...Rdd4
        • 2.Qg5#
      • 1...Rhd4
        • 2.Rh5#
      • 1...Bd4
        • 2.Qc4#
      • 1...Sed4
        • 2.Re5#
      • 1...Sbd4
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • R(a);OGATE::QAR(A)
    • R(e);OGATE::R(C)
    • B(c);OGATE::QAR1(A)
    • B(c);OGATE::QAB1(A)
    • S(b);OGATE::R1(B)
    • S(f);OGATE::B(G)
  • Tries
    • Try
      • B(I);
      • Threat
        • S(F)
      • Vars
        • R(a);OGATE::QAR(A)
        • R(e);OGATE::R(C)
        • B(c);OGATE::QAB1(A)
        • S(b);OGATE::R1(B)
        • S(f);OGATE::B(G)
      • Refutation
        • S(b);XB(I)
  • Actual
    • B(I);
    • Threat
      • S(F)
    • Vars
      • R(a);OGATE::QAR(A)
      • R(e);OGATE::R(C)
      • B(c);OGATE::QAB1(A)
      • S(b);OGATE::R1(B)
      • S(f);OGATE::B(G)
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