MESON Chess Problem Database

Problem Display
PID: 157374 (8/2Np2p1/1P3p1b/1RP2r1p/1p1P1k1p/1p1Q1N1K/2P3P1/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Stolev-60 J, 2008

8/2Np2p1/1P3p1b/1RP2r1p/1p1P1k1p/1p1Q1N1K/2P3P1/8

#2

10 + 10

4901 Best Problems 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sxd5#
    • 1...d5
      • 2.Se6#
    • 1...d6
      • 2.Se6#
  • Tries
    • 1.d5?
      • threat
        • 2.Rxb4#
        • 2.Qd4#
      • 1...Rxd5
        • 2.Sxd5#
      • 1...Rg5
        • 2.Rxb4#
      • 1...Re5!
  • Keys
    • 1.Rxb4!
      • threat
        • 2.d5#
      • 1...Rxc5
        • 2.dxc5#
      • 1...Rd5
        • 2.Sxd5#
      • 1...Re5
        • 2.dxe5#
      • 1...d5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(e);N_GUARD::S(J),XR(e)
    • P(i);N_GUARD::S(J)
  • Tries
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(e);XP(F)::S(J),XR(e)
        • R(e);::R(G),XP(b)
      • Refutation
        • R(e);
  • Actual
    • R(G);XP(b)
    • Threat
      • R(G)+P(F)
    • Vars
      • R(e);OGATE,XP(H)::R(G)+P(F),XR(e)
      • R(e);N_GUARD::S(J),XR(e)
      • R(e);OGATE::R(G)+P(F),XR(e)
      • P(i);N_GUARD::S(J)
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