MESON Chess Problem Database

Problem Display
PID: 129732 (8/8/7P/2pp4/P1Bk2N1/1p3P1Q/1P6/4K3 w - - 0 1)

Bobrov, Pavel Pavlovich

La Strategie, 1907

8/8/7P/2pp4/P1Bk2N1/1p3P1Q/1P6/4K3

#2

8 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qg2?
      • 1...dxc4
        • 2.Qd2#
      • 1...Kxc4!
    • 1.Qh2?
      • threat
        • 2.Qf4#
      • 1...dxc4
        • 2.Qd6#
        • 2.Qd2#
      • 1...Kxc4!
    • 1.Qg3?
      • threat
        • 2.Qf4#
      • 1...dxc4
        • 2.Qd6#
      • 1...Kxc4!
  • Keys
    • 1.Qh4!
      • 1...Kxc4
        • 2.Se5#
      • 1...dxc4
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Vars
        • P(d);SBLOCK,XB(F)::QAR2(D)
      • Refutation
        • K(b);P-FLIGHT,XB(F)
    • Try
      • Q(D);
      • Threat
        • QAR2(D)
      • Refutation
        • K(b);P-FLIGHT,XB(F)
    • Try
      • Q(D);
      • Threat
        • QAR2(D)
      • Vars
        • P(d);OGATEB,SBLOCK,XB(F)::QAR2(D)
      • Refutation
        • K(b);P-FLIGHT,XB(F)
  • Actual
    • Q(D);
    • Vars
      • K(b);P-FLIGHT,XB(F)::QAR(D)+S(G),DCHECK
      • P(d);OGATEB,SBLOCK,XB(F)::QAR(D)
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