MESON Chess Problem Database

Problem Display
PID: 267685 (8/p7/B1pQ4/N2P4/p2k4/P7/3B4/K7 w - - 0 1)

Zayizhdzhai, Oleksandr Ivanovich

Shakhmatnaya kompozitsiya, 1993

8/p7/B1pQ4/N2P4/p2k4/P7/3B4/K7

#2

7 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Bf4?
      • 1...Kc3
        • 2.Qc5#
      • 1...cxd5
        • 2.Qb4#
      • 1...c5
        • 2.Qe5#
      • 1...Ke4!
    • 1.Bc4?
      • 1...Ke4
        • 2.Qf4#
      • 1...cxd5
        • 2.Qxd5#
      • 1...c5
        • 2.Qf4#
      • 1...a6!
    • 1.Qe5+?
      • 1...Kc5
        • 2.Be3#
      • 1...Kxe5!
  • Keys
    • 1.Qe6!
      • 1...Kc5
        • 2.Be3#
      • 1...cxd5
        • 2.Qe3#
      • 1...c5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAR2(G)
        • P(c);P_SPINP(c),SBLOCK,XP(E)::QAR2(G)
        • P(c);SBLOCK::QAB1(G)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(F);
      • Vars
        • K(b);N_GUARD,P-FLIGHT::QAR1(G)
        • P(c);OGATE,P_SPINP(c),XP(E)::QAR1(G),XP(c)
        • P(c);SBLOCK::QAR2(G)
      • Refutation
        • P(d);
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(B)
      • Refutation
        • K(b);S_FLIGHT,XQ(G)
  • Actual
    • Q(G);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::B(B)
      • P(c);SBLOCK,XP(E)::QAB1(G)
      • P(c);SBLOCK::S(D)
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