MESON Chess Problem Database

Problem Display
PID: 57815 (8/6K1/3p1Np1/6r1/3k4/N4p2/2Q5/8 w - - 0 1)

Vitale, Luigi

Telescacco 92, 2000

8/6K1/3p1Np1/6r1/3k4/N4p2/2Q5/8

#2

4 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe4#
  • Tries
    • 1.Qe4+?
      • 1...Kc5
        • 2.Sd7#
      • 1...Kc3!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Ke3!
  • Keys
    • 1.Sb1!
      • threat
        • 2.Qc3#
      • 1...Ke3
        • 2.Qd2#
      • 1...Ke5
        • 2.Qe4#
      • 1...Rc5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::S(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);S_FLIGHT::QAR1(A)
      • R(c);SBLOCK::QAR1(A)
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