MESON Chess Problem Database

Problem Display
PID: 121355 (8/2p5/Q1N1P3/2Pk1P2/1K2p3/3p4/1n1P4/8 w - - 0 1)

Maximov, Nikolai J

Der Schachfreund, 1899

8/2p5/Q1N1P3/2Pk1P2/1K2p3/3p4/1n1P4/8

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4+?
      • 1...Kxc6
        • 2.Qxe4#
      • 1...Sxc4!
    • 1.Qa2+?
      • 1...Kxc6
        • 2.Qa8#
      • 1...Sc4!
  • Keys
    • 1.Qa1!
      • 1...Kxc6
        • 2.Qa8#
      • 1...e3
        • 2.Qh1#
      • 1...Sd1
        • 2.Se7#
      • 1...Sa4
        • 2.Se7#
      • 1...Sc4
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);S_FLIGHT,XS(F)::QAB(E),XP(c)
      • Refutation
        • S(a);XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(F)::QAB(E)
      • Refutation
        • S(a);P_SPINS(a)
  • Actual
    • Q(E);
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(F)::QAB(E)
      • P(c);OGATEB::QAB(E)
      • S(a);::S(F)
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