MESON Chess Problem Database

Problem Display
PID: 104376 (b1rn4/2pk1P2/4p2R/2R1P3/1b1N3B/5Q2/B7/6K1 w - - 0 1)

Liokymovich, Ilya Mikhailovich

Canadian Chess Chat, 1982

b1rn4/2pk1P2/4p2R/2R1P3/1b1N3B/5Q2/B7/6K1

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Bxe6#
    • 1...Sb7
      • 2.Bxe6#
      • 2.Qc6#
    • 1...Sxf7
      • 2.Qxf7#
  • Tries
    • 1.Qc6+?
      • 1...Sxc6
        • 2.Bxe6#
      • 1...Bxc6!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Sf8#
      • 1...Bxc5+
        • 2.Sxc5#
      • 1...Sxe6
        • 2.Bxe6#
      • 1...Sxf7
        • 2.Qxf7#
      • 1...Rb8
        • 2.Rxc7#
      • 1...Sc6
        • 2.Qd5#
      • 1...Sb7
        • 2.Qc6#
      • 1...c6
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::B(B),XP(b)
    • S(g);OGATE,XP(I)::QAR2(C),XS(g)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • S(g);XQ(C)::B(B),XP(b)
      • Refutation
        • B(e);XQ(C)
  • Actual
    • S(D);XP(b)
    • Threat
      • S(D)
    • Vars
      • B(a);CHECK,XR(F)::S(D),XB(a)
      • S(g);OGATE,XS(D)::B(B),XS(g)
      • S(g);OGATE,XP(I)::QAR2(C),XS(g)
      • R(f);N_GUARD::R1(F),XP(c)
      • S(g);S_CUTB(e)::QAR2(C)
      • S(g);N_GUARD,S_CUTB(e)::QAB1(C)
      • P(c);S_CUTB(e)::QAR(C)
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