MESON Chess Problem Database

Problem Display
PID: 169048 (3N4/KNk1pnR1/4BP2/8/8/8/8/8 w - - 0 1)

Oganesyan, Alexei Sergeevich

17th Place, SuperProblem 084. TT, 2013

3N4/KNk1pnR1/4BP2/8/8/8/8/8

#2

6 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Rxe7#
    • 1...Sd6
      • 2.Rxe7#
    • 1...Sh6
      • 2.Rxe7#
    • 1...Sh8
      • 2.Rxe7#
    • 1...exf6
      • 2.Rxf7#
  • Tries
    • 1.Sxf7?
      • 1...exf6
        • 2.Se5#
        • 2.Sfd8#
      • 1...Kc6!
  • Keys
    • 1.fxe7!
      • threat
        • 2.e8S#
      • 1...Sxd8
        • 2.exd8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • S(c);OGATE,P_SPINP(b)::R(E),XP(b)
    • P(b);OGATEB,P_SPINS(c),XP(B)::R(E),XS(c)
  • Tries
    • Try
      • S(F);XS(c)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(B);XP(b)
    • Threat
      • P=S
    • Vars
      • S(c);OGATE,XS(F)::PXS(c)=S
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