MESON Chess Problem Database

Problem Display
PID: 159408 (3N4/8/p2n4/p1k5/P7/1Q1PNp2/2K4B/7B w - - 0 1)

Buyanov, Aleksandr N

Schach, 1997

3N4/8/p2n4/p1k5/P7/1Q1PNp2/2K4B/7B

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qb6#
    • 1...f2
      • 2.Se6#
  • Tries
    • 1.Bxd6+?
      • 1...Kd4
        • 2.Sf5#
        • 2.Qb6#
      • 1...Kxd6!
  • Keys
    • 1.Sd5!
      • 1...Kd4
        • 2.Se6#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Se4
        • 2.Qc4#
      • 1...Sb5
        • 2.Qc4#
      • 1...Sf5
        • 2.Qc4#
      • 1...Sb7
        • 2.Qc4#
      • 1...Sf7
        • 2.Qc4#
      • 1...Sc8
        • 2.Qc4#
      • 1...Se8
        • 2.Qc4#
      • 1...f2
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(D)
    • P(a);::S(H)
  • Tries
    • Try
      • B(C);CHECK,XS(e)
      • Refutation
        • K(c);S_FLIGHT,XB(C)
  • Actual
    • S(F);
    • Vars
      • K(c);S_FLIGHT::S(H)
      • S(e);N_GUARD::QAR1(D),XS(e)
      • S(e);N_GUARD::QAR1(D)
      • P(a);::QAB1(D)
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