MESON Chess Problem Database

Problem Display
PID: 154681 (1K1Bb3/8/k7/P2N4/1R6/n2n4/2p5/R4B2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

stern, 2000

1K1Bb3/8/k7/P2N4/1R6/n2n4/2p5/R4B2

#2

7 + 5

15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Sc7#
      • 2.Rb6#
    • 1...Sc4
      • 2.Sc7#
  • Tries
    • 1.Bxd3+?
      • 1...Sc4
        • 2.Sc7#
        • 2.Rb6#
      • 1...Sb5
        • 2.Sc7#
      • 1...Bb5!
    • 1.Rxa3?
      • threat
        • 2.Sc7#
        • 2.Rb6#
      • 1...c1Q
        • 2.Rb6#
      • 1...c1R
        • 2.Rb6#
      • 1...Bb5
        • 2.Sc7#
      • 1...Ba4!
  • Keys
    • 1.Rb7!
      • threat
        • 2.Sb4#
      • 1...Bb5
        • 2.Ra7#
      • 1...Sc4
        • 2.Sc7#
      • 1...Sb5
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);N_SPINS(c)::S(E)
  • Tries
    • Try
      • B(B);CHECK,XS(c)
      • Vars
        • S(b);P_SPINS(b)::S(E)
      • Refutation
        • B(e);P_SPINB(e)
    • Try
      • R(A);XS(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::R1(C)
        • B(e);N_SPINS(c)::S(E)
      • Refutation
        • B(e);
  • Actual
    • R(C);
    • Threat
      • S(E)
    • Vars
      • B(e);N_SPINS(c),SBLOCK::R1(C)
      • S(b);N_SPINS(c)::S(E)
      • S(b);N_SPINS(c)::R1(C)
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