MESON Chess Problem Database

Problem Display
PID: 46118 (3Q4/1K1Pp1N1/4p3/1R1Pp3/3pkp2/2p5/2P2R1B/3N4 w - - 0 1)

Pavlov, Mikhail Aleksandrovich

4th HM., Hlas l'udu, 1979

3Q4/1K1Pp1N1/4p3/1R1Pp3/3pkp2/2p5/2P2R1B/3N4

#2

10 + 7

56 The Problemist 2002
5454 Near Snap 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Qb6?
      • 1...exd5
        • 2.Qg6#
      • 1...d3
        • 2.Sxc3#
      • 1...f3!
    • 1.Qc7?
      • 1...d3
        • 2.Qc4#
      • 1...f3
        • 2.Qxe5#
      • 1...exd5!
    • 1.Qf8?
      • 1...exd5
        • 2.Qf5#
      • 1...f3
        • 2.Qxf3#
      • 1...d3!
    • 1.dxe6?
      • 1...f3
        • 2.Rxe5#
      • 1...d3!
  • Keys
    • 1.Qxe7!
      • 1...exd5
        • 2.Rxf4#
      • 1...d3
        • 2.Qb4#
      • 1...f3
        • 2.Qh4#

This anticipates 46129(2000)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(J);
      • Vars
        • P(f);OGATE,XP(F)::QAB(J)
        • P(b);N_GUARD::S(A),XP(a)
      • Refutation
        • P(d);
    • Try
      • Q(J);
      • Vars
        • P(b);OGATEB::QAR2(J)
        • P(d);::QAR1(J),XP(e)
      • Refutation
        • P(f);XP(F)
    • Try
      • Q(J);
      • Vars
        • P(f);N_GUARD,XP(F)::QAB1(J)
        • P(d);OGATE::QAB1(J),XP(d)
      • Refutation
        • P(b);
    • Try
      • P(F);XP(f)
      • Vars
        • P(d);::R1(E),XP(e)
      • Refutation
        • P(b);
  • Actual
    • Q(J);XP(g)
    • Vars
      • P(f);P_SPINP(e),XP(F)::R1(C),XP(d)
      • P(b);OGATEB::QAR(J)
      • P(d);OGATEB::QAR(J)
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