MESON Chess Problem Database

Problem Display
PID: 23554 (8/8/8/8/2p5/4p3/1Nk1N3/Q3K3 w - - 0 1)

Benko, Pal Charles

Chess Life, 1980

8/8/8/8/2p5/4p3/1Nk1N3/Q3K3

#2

4 + 3

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Sd4#
  • Tries
    • 1.Sa4?
      • threat
        • 2.Qd1#
      • 1...Kd3
        • 2.Qb1#
      • 1...Kb3!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qd1#
      • 1...Kb3
        • 2.Sd4#
      • 1...Kxd3
        • 2.Qb1#
      • 1...cxd3
        • 2.Sd4#
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(c);SBLOCK::S(D)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);S_FLIGHT::S(D)
      • K(a);S_FLIGHT,XS(C)::QAB(A)
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