MESON Chess Problem Database

Problem Display
PID: 71548 (8/2N5/8/4N1p1/3pk3/6P1/Q6P/3K4 w - - 0 1)

Groeneveld, Cornelis

1st Comm., d2-d4, 2003-2004

8/2N5/8/4N1p1/3pk3/6P1/Q6P/3K4

#2

6 + 3

102 Probleemblad 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qe2#
    • 1...Kxe5
      • 2.Qe6#
  • Tries
    • 1.Qd5+?
      • 1...Ke3
        • 2.Qf3#
      • 1...Kf5!
    • 1.Qf7?
      • 1...Ke3
        • 2.Qf3#
      • 1...Kxe5
        • 2.Qe6#
      • 1...g4
        • 2.Qf4#
      • 1...d3!
  • Keys
    • 1.Sg4!
      • 1...Kd3
        • 2.Qc2#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kf5
        • 2.Qe6#
      • 1...d3
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • K(b);P-FLIGHT::QAR1(B)
    • K(b);OGATEB,P-FLIGHT,XS(E)::QAR1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
        • K(b);OGATEB,P-FLIGHT,XS(E)::QAR1(B)
        • P(c);N_GUARD::QAR1(B)
      • Refutation
        • P(a);
  • Actual
    • S(E);
    • Vars
      • K(b);S_FLIGHT::QAB1(B)
      • P(a);::QAB1(B)
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