MESON Chess Problem Database

Problem Display
PID: 113492 (7R/3p2Pb/1p6/8/8/Q5p1/n2K4/k7 w - - 0 1)

Sabol, Frantisek

Sachova skladba, 1988

7R/3p2Pb/1p6/8/8/Q5p1/n2K4/k7

#2

4 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bg8
      • 2.Rh1#
  • Tries
    • 1.g8Q?
      • threat
        • 2.Qgxa2#
        • 2.Qaxa2#
      • 1...Kb1
        • 2.Qgxa2#
        • 2.Qaxa2#
      • 1...Bxg8
        • 2.Rh1#
      • 1...Bb1
        • 2.Qg7#
      • 1...d5!
  • Keys
    • 1.Ra8!
      • threat
        • 2.Qxa2#
      • 1...Kb1
        • 2.Qxa2#
      • 1...Bb1
        • 2.Qc3#
      • 1...Bg8
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(f);OGATE::R(D)
  • Tries
    • Try
      • P(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);OGATE,XQ(C)::R(D)
        • B(f);SBLOCK::QAB(C)
      • Refutation
        • P(e);
  • Actual
    • R(D);
    • Threat
      • QAR1(B),XS(b)
    • Vars
      • K(a);N_SPINS(b),P-FLIGHT::QAB1(B),XS(b)
      • B(f);SBLOCK::QAB(B)
      • B(f);N_GUARD::QAR2(B)
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