MESON Chess Problem Database

Problem Display
PID: 87052 (3K4/2QB4/2PR1Pp1/3Pk1q1/5ppB/2PbrP2/8/3R4 w - - 0 1)

Tkachenko, Sergiy Ivanovich

Hlas l'udu, 1989

3K4/2QB4/2PR1Pp1/3Pk1q1/5ppB/2PbrP2/8/3R4

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf6+
      • 2.Bxf6#
    • 1...Bf5
      • 2.Re6#
  • Tries
    • 1.Bxg4?
      • threat
        • 2.Qe7#
      • 1...Qxf6+
        • 2.Bxf6#
      • 1...Qf5
        • 2.Rd7#
      • 1...Bf5
        • 2.Re6#
      • 1...Qxg4!
  • Keys
    • 1.Bc8!
      • threat
        • 2.Qe7#
      • 1...Qxf6+
        • 2.Bxf6#
      • 1...Qf5
        • 2.Rd7#
      • 1...Bf5
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(f);CHECK,OGATE,XP(H)::B(D),XQ(f)
    • B(a);SBLOCK::QAB(I)+R(G),DCHECK
  • Tries
    • Try
      • B(J);XP(d)
      • Threat
        • QAR2(I)
      • Vars
        • Q(f);CHECK,OGATE,XP(H)::B(D),XQ(f)
        • Q(f);N_PINP(H)::QAB(I)+R(G)
        • B(a);::QAB(I)+R(G),DCHECK
      • Refutation
        • Q(f);N_PINP(H),XB(J)
  • Actual
    • B(J);
    • Threat
      • QAR2(I)
    • Vars
      • Q(f);CHECK,OGATE,XP(H)::B(D),XQ(f)
      • Q(f);N_PINP(H),SBLOCK::QAB(I)+R(G)
      • B(a);SBLOCK::QAB(I)+R(G),DCHECK
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