MESON Chess Problem Database

Problem Display
PID: 66634 (5n2/2R5/8/2P1N3/2nk4/8/1P1PK2B/5R1B w - - 0 1)

Narayanan, Chithathuz Gopatan Sathya

1st Place, League of Macedonian Problemists, 2002-2003

5n2/2R5/8/2P1N3/2nk4/8/1P1PK2B/5R1B

#2

9 + 3

23 Die Schwalbe 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se3
      • 2.dxe3#
    • 1...Sxe5
      • 2.Rf4#
  • Tries
    • 1.Rc1?
      • threat
        • 2.Rxc4#
      • 1...Sxb2
        • 2.Sc6#
      • 1...Sxd2
        • 2.Sc6#
      • 1...Sxe5
        • 2.Bg1#
      • 1...Sa3
        • 2.Sc6#
      • 1...Se3
        • 2.Sc6#
        • 2.dxe3#
      • 1...Sb6
        • 2.Sc6#
      • 1...Sd6
        • 2.Sc6#
      • 1...Sa5!
  • Keys
    • 1.Rf5!
      • threat
        • 2.Sc6#
      • 1...Sxb2
        • 2.Bg1#
      • 1...Sxd2
        • 2.Bg1#
      • 1...Sxe5
        • 2.Rf4#
      • 1...Sa3
        • 2.Bg1#
      • 1...Se3
        • 2.dxe3#
      • 1...Sa5
        • 2.Bg1#
      • 1...Sb6
        • 2.Bg1#
      • 1...Sd6
        • 2.Bg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE::P(D),XS(a)
    • S(a);SBLOCK,XS(H)::R(A)
  • Tries
    • Try
      • R(A);
      • Threat
        • R1(A),XS(a)
      • Vars
        • S(a);XP(C)::S(H)
        • S(a);XP(D)::S(H)
        • S(a);N_GUARD,SBLOCK,XS(H)::B(F)
        • S(a);::S(H)
      • Refutation
        • S(a);
  • Actual
    • R(A);
    • Threat
      • S(H)
    • Vars
      • S(a);N_GUARD,XP(C)::B(F)
      • S(a);N_GUARD,XP(D)::B(F)
      • S(a);SBLOCK,XS(H)::R(A)
      • S(a);N_GUARD::B(F)
      • S(a);OGATE::P(D),XS(a)
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