MESON Chess Problem Database

Problem Display
PID: 86889 (3b4/8/8/8/2pN1N2/8/4R3/1K1k4 w - - 0 1)

Krivenko, Valery Aleksinovich

Szoghy-70 JT, 1981

3b4/8/8/8/2pN1N2/8/4R3/1K1k4

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3?
      • threat
        • 2.Re1#
        • 2.Rd2#
      • 1...Bh4
        • 2.Rd2#
      • 1...c3
        • 2.Re1#
      • 1...Ba5!
    • 1.Sd3?
      • threat
        • 2.Sb2#
        • 2.Sf2#
      • 1...Bh4
        • 2.Sb2#
      • 1...c3
        • 2.Sf2#
      • 1...cxd3!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sc3#
        • 2.Se3#
      • 1...Ba5
        • 2.Se3#
      • 1...Bg5
        • 2.Sc3#
      • 1...c3
        • 2.Sxc3#
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::R1(B)
        • P(b);::R1(B)
      • Refutation
        • B(c);
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::S(D)
        • P(b);::S(D)
      • Refutation
        • P(b);XS(D)
  • Actual
    • S(D);
    • Threat
      • DUALS(2)
    • Vars
      • B(c);::S(D)
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