MESON Chess Problem Database

Problem Display
PID: 101659 (N5BB/8/1P3R2/2pn3K/Ppk2P2/1Rp1P3/2P5/3N4 w - - 0 1)

Pasture, Pascal

diagrammes, 1989

N5BB/8/1P3R2/2pn3K/Ppk2P2/1Rp1P3/2P5/3N4

#2

12 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rxb4+?
      • 1...cxb4
        • 2.Rc6#
      • 1...Kxb4!
    • 1.Re6?
      • threat
        • 2.Re4#
      • 1...Sf6+
        • 2.Rxf6#
      • 1...Sxf4+!
  • Keys
    • 1.Rf7!
      • 1...Sxf4+
        • 2.Rxf4#
      • 1...Sf6+
        • 2.Rxf6#
      • 1...Sxe3
        • 2.Sxe3#
      • 1...Sxb6
        • 2.Sxb6#
      • 1...Sc7
        • 2.Rxc7#
      • 1...Se7
        • 2.Rxe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK,XP(b)
      • Vars
        • P(d);SBLOCK,XR(C)::R(I)
      • Refutation
        • K(c);N_SPINS(e),P-FLIGHT,XR(C)
    • Try
      • R(I);N_PINS(e)
      • Threat
        • R(I)
      • Vars
        • S(e);CHECK,OGATEB::B(K)+R(I),XS(e)
      • Refutation
        • S(e);CHECK,XP(F)
  • Actual
    • R(I);N_PINS(e)
    • Vars
      • S(e);CHECK,OGATE,XP(F)::B(K)+R(I),DCHECK,XS(e)
      • S(e);CHECK,OGATEB::B(K)+R(I),XS(e)
      • S(e);XP(D)::S(A),XS(e)
      • S(e);XP(H)::S(J),XS(e)
      • S(e);OGATEB::B(K)+R(I),XS(e)
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