MESON Chess Problem Database

Problem Display
PID: 198441 (6Q1/4Kp2/2PP1p1r/RB2Bk2/4pP1p/4Pp1p/2q5/3r4 w - - 0 1)

Balashov, Evgeny Fedorovich

Sachova skladba, 1997

6Q1/4Kp2/2PP1p1r/RB2Bk2/4pP1p/4Pp1p/2q5/3r4

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rg6
      • 2.Qc8#
    • 1...fxe5
      • 2.Qg5#
  • Tries
    • 1.Bxf6?
      • threat
        • 2.Qg5#
      • 1...Rg6
        • 2.Qc8#
      • 1...Qg2
        • 2.Bd3#
      • 1...Rg1
        • 2.Bc4#
      • 1...Rh5!
  • Keys
    • 1.Bf1!
      • threat
        • 2.Bxh3#
      • 1...Rxf1
        • 2.Bc3#
      • 1...Rg6
        • 2.Qc8#
      • 1...Qg2
        • 2.Bd4#
      • 1...Qh2
        • 2.Bd4#
      • 1...h2
        • 2.Bh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(i);SBLOCK::QAB(I)
    • P(h);N_GUARD,XB(E)::QAR1(I)
  • Tries
    • Try
      • B(E);XP(h)
      • Threat
        • QAR1(I)
      • Vars
        • R(i);SBLOCK::QAB(I)
        • Q(b);N_GUARD::R(C)+B(D)
        • R(a);N_GUARD::R(C)+B(D)
      • Refutation
        • R(i);
  • Actual
    • B(D);
    • Threat
      • B(D),XP(d)
    • Vars
      • R(a);N_GUARD,XB(D)::R(C)+B(E)
      • R(i);SBLOCK::QAB(I)
      • Q(b);N_GUARD::R(C)+B(E)
      • P(d);::B(D)
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