MESON Chess Problem Database

Problem Display
PID: 24884 (8/8/8/8/3Q4/7K/N1pp4/3k4 w - - 0 1)

Behting, Karl Karlovich

Baltijas Vestnesis, 1889

8/8/8/8/3Q4/7K/N1pp4/3k4

#2

3 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3+?
      • 1...Ke1
        • 2.Qg1#
      • 1...Kc1!
  • Keys
    • 1.Sc1!
      • threat
        • 2.Qg1#
      • 1...Kxc1
        • 2.Qa1#
      • 1...Ke1
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAR(C)
    • Vars
      • K(a);N_SPINP(c),OGATEB,P-FLIGHT,XS(A)::QAR2(C)
      • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
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