MESON Chess Problem Database

Problem Display
PID: 124451 (r7/8/8/2R2r2/4k3/4NpP1/1PKBN1Pp/4R3 w - - 0 1)

Belliboni, Caetano

Introducao ao Problema Ortodoxo, 1981

r7/8/8/2R2r2/4k3/4NpP1/1PKBN1Pp/4R3

#2

9 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Rc4#
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sc3#
        • 2.Sed4#
        • 2.Sf4#
        • 2.Sd6#
      • 1...fxe2
        • 2.Rxe2#
      • 1...fxg2
        • 2.Sg1#
        • 2.Sed4#
      • 1...h1Q
        • 2.Sg1#
        • 2.Sc3#
        • 2.Sd6#
      • 1...h1R
        • 2.Sg1#
        • 2.Sc3#
        • 2.Sd6#
      • 1...Ra1
        • 2.Sc1#
        • 2.Sc3#
        • 2.Sd6#
      • 1...Ra3
        • 2.Sc3#
        • 2.Sd6#
      • 1...Ra6
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sc3#
        • 2.Sed4#
        • 2.Sf4#
      • 1...Rd8
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sc3#
        • 2.Sed4#
        • 2.Sf4#
      • 1...f2
        • 2.Sc3#
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(d);SBLOCK::R(I)
  • Actual
    • S(G);XR(d)
    • Threat
      • DUALS(6)
    • Vars
      • P(b);OGATE,P_SPINP(b),XS(E)::R(A),XP(b)
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