MESON Chess Problem Database

Problem Display
PID: 101980 (4B1kq/6Nr/7p/7P/4K3/5RQ1/8/8 w - - 0 1)

Bogdanov, Evgeny Mikhailovich

Mat, 1982

4B1kq/6Nr/7p/7P/4K3/5RQ1/8/8

#2

6 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Se6+?
      • 1...Qg7
        • 2.Rf8#
      • 1...Rg7!
    • 1.Bg6?
      • 1...Kxg7
        • 2.Be8#
      • 1...Rxg7
        • 2.Qb8#
      • 1...Qxg7!
  • Keys
    • 1.Qb8!
      • 1...Kxg7
        • 2.Qg3#
      • 1...Qxg7
        • 2.Bf7#
      • 1...Rxg7
        • 2.Bg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • Q(d);P_SPINQ(d)::R1(A)
      • Refutation
        • R(b);P_SPINR(b)
    • Try
      • B(F);
      • Vars
        • K(c);OGATEB,P-FLIGHT,XS(E)::QAR(B)+B(F)
        • R(b);SBLOCK,XS(E)::QAR(B)
      • Refutation
        • Q(d);XS(E)
  • Actual
    • Q(B);
    • Vars
      • K(c);OGATEB,P-FLIGHT,XS(E)::QAR(B)
      • Q(d);SBLOCK,XS(E)::QAR(B)+B(F),DCHECK
      • R(b);SBLOCK,XS(E)::QAR(B)+B(F)
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