MESON Chess Problem Database

Problem Display
PID: 59440 (4R3/8/B7/2p5/6pB/8/3N2p1/1K1k4 w - - 0 1)

Lincoln, Robert A

The Problemist Supplement, 2005

4R3/8/B7/2p5/6pB/8/3N2p1/1K1k4

#2

5 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3?
      • threat
        • 2.Be2#
        • 2.Re1#
        • 2.Rd8#
      • 1...g1Q
        • 2.Be2#
      • 1...g1S
        • 2.Re1#
        • 2.Rd8#
      • 1...g1B
        • 2.Be2#
        • 2.Re1#
      • 1...g1R
        • 2.Be2#
        • 2.Rd8#
      • 1...c4
        • 2.Re1#
      • 1...g3!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Be2#
        • 2.Re1#
        • 2.Rd8#
      • 1...gxf3
        • 2.Rd8#
      • 1...g1Q
        • 2.Be2#
      • 1...g1S
        • 2.Re1#
        • 2.Rd8#
      • 1...g1B
        • 2.Be2#
        • 2.Re1#
      • 1...g1R
        • 2.Be2#
        • 2.Rd8#
      • 1...c4
        • 2.Re1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(3)
      • Vars
        • P(b);::B(D)
        • P(d);::R1(E)
      • Refutation
        • P(c);
  • Actual
    • S(B);
    • Threat
      • DUALS(3)
    • Vars
      • P(c);XS(B)::R(E)
      • P(b);::B(D)
      • P(d);::R1(E)
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