MESON Chess Problem Database

Problem Display
PID: 46637 (4K1Nk/5Q2/8/8/8/8/5p2/1b6 w - - 0 1)

Barda, Olaf Martinius (AKA OM Olsen)

Dagbladet, 1961

4K1Nk/5Q2/8/8/8/8/5p2/1b6

#2

3 + 3

4884 154 norske miniatyrproblemer 1974
4883 Still More Fun with Chess Miniatures 2002
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6?
      • threat
        • 2.Qg8#
        • 2.Qf8#
      • 1...Ba2
        • 2.Qh7#
      • 1...Bh7
        • 2.Qxh7#
      • 1...Bg6!
  • Keys
    • 1.Se7!
      • threat
        • 2.Qg8#
      • 1...Ba2
        • 2.Sg6#
      • 1...Bg6
        • 2.Sxg6#
      • 1...Bh7
        • 2.Qf6#

Anticipated by 194157(1917), 206650(1925)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD::QAR1(A)
        • B(a);N_GUARD::QAR1(A),XB(a)
      • Refutation
        • B(a);P_PINQ(A)
  • Actual
    • S(C);
    • Threat
      • QAR1(A)
    • Vars
      • B(a);N_GUARD::S(C)
      • B(a);N_GUARD,P_PINQ(A)::S(C),XB(a)
      • B(a);SBLOCK::QAB(A)
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