MESON Chess Problem Database

Problem Display
PID: 116349 (k4rrQ/3Np2n/8/N2R4/3BR3/8/8/3Kb2B w - - 0 1)

Hermanson, Halvar

Boletim da UBP, 1962

k4rrQ/3Np2n/8/N2R4/3BR3/8/8/3Kb2B

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rd6?
      • threat
        • 2.Ra6#
      • 1...exd6
        • 2.Re8#
      • 1...Rf6
        • 2.Rf4#
      • 1...Rg6
        • 2.Rg4#
      • 1...Bxa5!
  • Keys
    • 1.Re6!
      • threat
        • 2.Ra6#
      • 1...Bxa5
        • 2.Rxa5#
      • 1...Rf6
        • 2.Rf5#
      • 1...Rg6
        • 2.Rg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);
      • Threat
        • R(F)
      • Vars
        • P(b);OGATE,XR(F)::B(B)+R(D),DCHECK
        • R(e);P_SPINR(f)::B(B)+R(D)
        • R(f);P_SPINR(e)::B(B)+R(D)
      • Refutation
        • B(a);XS(E)
  • Actual
    • R(D);
    • Threat
      • R(D)
    • Vars
      • B(a);OGATE,XS(E)::B(B)+R(F),DCHECK,XB(a)
      • R(e);P_SPINR(f)::B(B)+R(F)
      • R(f);P_SPINR(e)::B(B)+R(F)
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