MESON Chess Problem Database

Problem Display
PID: 101965 (8/5P2/7K/4kp2/2Q5/1N6/2n5/8 w - - 0 1)

Bantysh, Nikolai Ivanovich

Umenie 64, 1998

8/5P2/7K/4kp2/2Q5/1N6/2n5/8

#2

4 + 3

6490 yacpdb 2009
5454 Near Snap 2014

SOLUTION

  • SOUND
  • Tries
    • 1.f8Q?
      • threat
        • 2.Qe7#
      • 1...f4
        • 2.Qfxf4#
      • 1...Sd4!
  • Keys
    • 1.f8S!
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qe6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...f4
        • 2.Qe6#
      • 1...Sa1
        • 2.Qd4#
      • 1...Se1
        • 2.Qd4#
      • 1...Sa3
        • 2.Qd4#
      • 1...Se3
        • 2.Qd4#
      • 1...Sb4
        • 2.Qd4#

This anticipates 123417(2004)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(D);
      • Threat
        • QAR2(D)
      • Vars
        • P(c);OGATE::QAB1(D),XP(c)
      • Refutation
        • S(a);
  • Actual
    • P(D);
    • Vars
      • K(b);S_FLIGHT::QAB1(B)
      • K(b);S_FLIGHT::QAR1(B)
      • S(a);N_GUARD::QAB1(B),XS(a)
      • P(c);SBLOCK::QAR1(B)
      • S(a);N_GUARD::QAB1(B)
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