MESON Chess Problem Database

Problem Display
PID: 7038 (8/8/8/8/4B3/7b/Q4KP1/4N2k w - - 0 1)

Lebedev, Aleksandr N

The Problemist, 1935

8/8/8/8/4B3/7b/Q4KP1/4N2k

#2

5 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984
3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991
4883 Still More Fun with Chess Miniatures 2002
136 Problem Observer 2007
3713 Snap 2007
136 Problem Observer 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Qb1?
      • threat
        • 2.Sf3#
      • 1...Kh2
        • 2.Sf3#
      • 1...Bxg2!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Sf3#
      • 1...Kh2
        • 2.Sf3#
      • 1...Bxg2
        • 2.Qh8#

This anticipates 56474(1935)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR(B)+S(A)
      • Vars
        • K(a);P-FLIGHT::S(A)
      • Refutation
        • B(b);P_SPINB(b),XP(D)
  • Actual
    • Q(B);
    • Threat
      • QAR(B)+S(A)
    • Vars
      • K(a);P-FLIGHT::S(A)
      • B(b);OGATEB,P_SPINB(b),XP(D)::QAB(B)
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