MESON Chess Problem Database

Problem Display
PID: 34834 (3R4/B2bQp2/1r3P2/4P2R/pnPNk2N/1nP3K1/4BP2/8 w - - 0 1)

Semenenko, Aleksandr

Semenenko, Valery Yurevich

1st Prize, Ukrainian Folk Crafts, 2001

3R4/B2bQp2/1r3P2/4P2R/pnPNk2N/1nP3K1/4BP2/8

#2

13 + 7

23 Die Schwalbe 2001
102 Probleemblad 2001
145 StrateGems 2001
56 The Problemist 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Bf3#
  • Tries
    • 1.Sxb3?
      • threat
        • 2.Sd2#
        • 2.Sc5#
      • 1...Rb5
        • 2.Sd2#
        • 2.f3#
      • 1...Rc6
        • 2.Sd2#
        • 2.f3#
      • 1...Rd6
        • 2.Sc5#
        • 2.f3#
      • 1...Sd3
        • 2.Sd2#
        • 2.Bf3#
      • 1...Sa6
        • 2.Sd2#
      • 1...axb3!
    • 1.Shf3?
      • threat
        • 2.Sg5#
      • 1...Sxd4
        • 2.Sd2#
      • 1...Re6
        • 2.Rh4#
      • 1...Be6!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sg5#
      • 1...Rxe6
        • 2.f3#
      • 1...Bxe6
        • 2.Bf3#
      • 1...fxe6
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(c);SBLOCK::B(A)
  • Tries
    • Try
      • S(F);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::S(F)
      • Refutation
        • P(b);XS(F)
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • S(a);N_GUARD,XS(F)::S(G)
        • R(e);S_CUTB(f)::R(I)
      • Refutation
        • B(f);
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • R(e);XS(F)::P(B)
      • B(f);XS(F)::B(A)
      • P(g);OGATE,XS(F)::QAB(L)
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Developed and maintained by Brian Stephenson.
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