MESON Chess Problem Database

Problem Display
PID: 185065 (4K3/3p4/1N2p1Q1/2P1kp2/5p1b/5P2/5B2/3n4 w - - 0 1)

Anonymous

British Chess Magazine, 1917

4K3/3p4/1N2p1Q1/2P1kp2/5p1b/5P2/5B2/3n4

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf2
      • 2.Qg7#
    • 1...Bg3
      • 2.Qg7#
    • 1...d5
      • 2.Sd7#
  • Keys
    • 1.Qg1!
      • threat
        • 2.Bd4#
      • 1...Kf6
        • 2.Sxd7#
      • 1...Bxf2
        • 2.Qg7#
      • 1...Sxf2
        • 2.Qa1#
      • 1...Se3
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(c);N_GUARD,XB(A)::QAB(E)
    • B(c);N_GUARD::QAB(E)
    • P(g);SBLOCK::S(D)
  • Actual
    • Q(E);
    • Threat
      • B(A)
    • Vars
      • K(d);S_FLIGHT::S(D),XP(g)
      • B(c);N_GUARD,XB(A)::QAB(E)
      • S(a);OGATE,XB(A)::QAB(E)
      • S(a);OGATE::QAB(E)
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