MESON Chess Problem Database

Problem Display
PID: 137344 (8/3Np3/3pB3/3pP3/4k3/6p1/1K2P3/2Q1N3 w - - 0 1)

Groeneveld, Cornelis

Freie Presse, 1999

8/3Np3/3pB3/3pP3/4k3/6p1/1K2P3/2Q1N3

#2

7 + 5

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qf4#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Qf4#
      • 1...dxe5!
    • 1.Sf3?
      • 1...dxe5
        • 2.Sc5#
      • 1...d4
        • 2.Sg5#
      • 1...g2!
    • 1.Bf5+?
      • 1...Kd4
        • 2.Sf3#
        • 2.Qf4#
        • 2.Qc3#
        • 2.e3#
      • 1...Kxf5!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Qe3#
        • 2.Qf4#
      • 1...Kd4
        • 2.Qf4#
      • 1...dxe5
        • 2.Qe3#
      • 1...d4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(A)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • P(d);XP(E)
    • Try
      • S(B);
      • Vars
        • P(d);N_GUARD,XP(E)::S(G)
        • P(c);SBLOCK::S(B)
      • Refutation
        • P(a);
    • Try
      • B(F);CHECK
      • Refutation
        • K(b);S_FLIGHT,XB(F)
  • Actual
    • S(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P-FLIGHT::QAR2(A)
      • P(d);XP(E)::QAR1(A)
      • P(c);SBLOCK::QAR1(A)
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