MESON Chess Problem Database

Problem Display
PID: 195813 (8/6Q1/5p2/8/7n/8/7p/4K2k w - - 0 1)

Lincoln, Robert A

Comm., Kozhakina-25 JT, 2016

8/6Q1/5p2/8/7n/8/7p/4K2k

#2

2 + 4

145 StrateGems 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Kf1?
      • 1...Sg2
        • 2.Qxg2#
      • 1...Sf3
        • 2.Qg2#
      • 1...Sf5
        • 2.Qg2#
        • 2.Qb7#
      • 1...Sg6
        • 2.Qb7#
      • 1...f5!
  • Keys
    • 1.Kf2!
      • 1...Sg2
        • 2.Qxg2#
      • 1...Sf3
        • 2.Qg2#
      • 1...Sf5
        • 2.Qg2#
        • 2.Qb7#
      • 1...Sg6
        • 2.Qb7#
      • 1...f5
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • S(c);N_GUARD::QAB1(B),XS(c)
        • S(c);N_GUARD::QAB1(B)
        • S(c);N_GUARD::QAB(B)
      • Refutation
        • P(d);
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • S(c);N_GUARD::QAB1(B),XS(c)
      • S(c);N_GUARD::QAB1(B)
      • S(c);N_GUARD::QAB(B)
      • P(d);OGATE::QAB1(B)
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