MESON Chess Problem Database

Problem Display
PID: 134707 (1R3nb1/8/1p3p2/2N1P3/8/K2B3Q/3pp3/k7 w - - 0 1)

Howard, David M

Problem Observer, 1997

1R3nb1/8/1p3p2/2N1P3/8/K2B3Q/3pp3/k7

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bb3
      • 2.Sxb3#
    • 1...Bh7
      • 2.Sb3#
    • 1...Se6
      • 2.Sb3#
    • 1...bxc5
      • 2.Rb1#
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qd4#
      • 1...bxc5
        • 2.Rb1#
      • 1...fxe5
        • 2.Qxe5#
      • 1...d1S
        • 2.Qc1#
      • 1...Se6
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(g);N_GUARD::S(D),XB(g)
    • B(g);N_GUARD::S(D)
    • S(f);S_CUTB(g)::S(D)
    • P(d);OGATE,XS(D)::R1(F)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • P(d);OGATE,XS(D)::R1(F)
      • P(e);OGATE,XP(E)::QAB(C),XP(e)
      • P(b);OGATE::QAR2(C)
      • S(f);S_CUTB(g)::S(D)
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Developed and maintained by Brian Stephenson.
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