MESON Chess Problem Database

Problem Display
PID: 121445 (8/K5B1/1PN5/p1kp1P2/P7/8/Q7/8 w - - 0 1)

Maximov, Nikolai J

La Strategie, 1894

8/K5B1/1PN5/p1kp1P2/P7/8/Q7/8

#2

7 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Se5?
      • 1...Kb4
        • 2.Sd3#
      • 1...Kd6
        • 2.Qa3#
      • 1...d4
        • 2.Bf8#
      • 1...Kd4!
    • 1.Qh2?
      • 1...Kc4
        • 2.Qc2#
      • 1...Kxc6
        • 2.Qc7#
      • 1...d4!
    • 1.Qa3+?
      • 1...Kc4
        • 2.Sxa5#
        • 2.Qc3#
      • 1...Kxc6!
  • Keys
    • 1.Sb8!
      • 1...Kb4
        • 2.Sa6#
      • 1...Kd6
        • 2.Qa3#
      • 1...d4
        • 2.Bf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Vars
        • K(b);S_FLIGHT::S(E)
        • K(b);S_FLIGHT::QAB(A)
        • P(c);SBLOCK::B(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • K(b);OGATEB,P-FLIGHT,XS(E)::QAR1(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT,XS(E)
  • Actual
    • S(E);
    • Vars
      • K(b);S_FLIGHT::S(E)
      • K(b);S_FLIGHT::QAB(A)
      • P(c);SBLOCK::B(G)
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