MESON Chess Problem Database

Problem Display
PID: 40973 (3b1R1B/1KR1p3/1nNPkr2/2P2p2/3r4/4N3/8/8 w - - 0 1)

Armeni, Alberto

Problem Observer, 2002

3b1R1B/1KR1p3/1nNPkr2/2P2p2/3r4/4N3/8/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rg6
      • 2.Sxd4#
      • 2.Sxd8#
    • 1...Rh6
      • 2.Sxd4#
      • 2.Sxd8#
    • 1...Rf7
      • 2.Sxd4#
      • 2.Sxd8#
  • Keys
    • 1.dxe7!
      • threat
        • 2.Rxf6#
      • 1...Rxf8
        • 2.exf8S#
      • 1...Bxc7
        • 2.e8Q#
      • 1...Bxe7
        • 2.Rxe7#
      • 1...Rg6
        • 2.Sxd4#
      • 1...Rh6
        • 2.Sxd4#
      • 1...Rf7
        • 2.Sxd4#
      • 1...Sd5
        • 2.exd8S#
      • 1...Sd7
        • 2.exd8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(D);XP(f)
    • Threat
      • R1(G),XR(e)
    • Vars
      • R(e);OGATE,XR(G)::PXR(e)=S
      • B(g);N_GUARD,XR(F)::P=Q
      • B(g);OGATE,XP(D)::R1(F),XB(g)
      • R(e);::S(C),XR(a)
      • S(c);S_CUTR(a)::PXB(g)=S
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