MESON Chess Problem Database

Problem Display
PID: 144263 (8/8/K3p3/4prB1/1p1pk1n1/1Q6/2P3P1/3R2b1 w - - 0 1)

O'Keefe, John James

Melbourne Leader, 1909

8/8/K3p3/4prB1/1p1pk1n1/1Q6/2P3P1/3R2b1

#2

6 + 8

119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Qxf3#
    • 1...Rxg5
      • 2.Qf3#
    • 1...Sf2
      • 2.Re1#
    • 1...d3
      • 2.Qxd3#
  • Keys
    • 1.c4!
      • threat
        • 2.Qd3#
      • 1...Rxg5
        • 2.Qf3#
      • 1...bxc4 ep
        • 2.Qb7#
      • 1...dxc4 ep
        • 2.Qc2#
      • 1...Rf3
        • 2.Qxf3#
      • 1...d3
        • 2.Qxd3#
      • 1...Sf2
        • 2.Re1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(g);N_GUARD::QAB1(D),XR(g)
    • R(g);N_GUARD,XB(E)::QAB1(D)
    • S(e);N_GUARD,S_CUTB(a)::R(A)
    • P(c);::QAB1(D),XP(c)
  • Actual
    • P(B);
    • Threat
      • QAB1(D)
    • Vars
      • R(g);N_GUARD,XB(E)::QAB1(D)
      • P(b);EP,OGATE,XP(B)::QAB(D)
      • P(c);EP,N_GUARD,XP(B)::QAB(D)
      • R(g);N_GUARD::QAB1(D),XR(g)
      • P(c);::QAB1(D),XP(c)
      • S(e);N_GUARD,S_CUTB(a)::R(A)
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Developed and maintained by Brian Stephenson.
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