MESON Chess Problem Database

Problem Display
PID: 132543 (8/8/2R2B2/2R5/Bppp4/1NNk4/8/2K5 w - - 0 1)

Koltanowski, George

Source?, 0000

8/8/2R2B2/2R5/Bppp4/1NNk4/8/2K5

#2

7 + 4

2425 San Francisco Chronicle 0000

SOLUTION

  • SOUND
  • Tries
    • 1.Re6?
      • 1...Kxc3
        • 2.Re3#
      • 1...cxb3
        • 2.Bb5#
      • 1...dxc3
        • 2.Rd5#
      • 1...bxc3!
  • Keys
    • 1.Re5!
      • 1...Kxc3
        • 2.Re3#
      • 1...bxc3
        • 2.Sc5#
      • 1...cxb3
        • 2.Bb5#
      • 1...dxc3
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(c),XS(C)::R(F)
        • P(c);OGATEB,XS(B)::B(D)
        • P(d);OGATEB,XS(C)::R(E)
      • Refutation
        • P(b);XS(C)
  • Actual
    • R(E);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(c),XS(C)::R(E)
      • P(b);SBLOCK,XS(C)::S(B)
      • P(c);OGATEB,XS(B)::B(D)
      • P(d);OGATEB,SBLOCK,XS(C)::R(F)
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