MESON Chess Problem Database

Problem Display
PID: 22306 (6Q1/1K1Bp3/6p1/2k5/2N5/1P6/4N3/8 w - - 0 1)

van Dijk, Nils Gustav Gerard

Hamar Arbeiderbladet, 1977

6Q1/1K1Bp3/6p1/2k5/2N5/1P6/4N3/8

#2

6 + 3

3750 FIDE Album (1977-1979) 1984
5007 Zadachi i Etyudi 1995

SOLUTION

  • SOUND
  • Tries
    • 1.Qd5+?
      • 1...Kb4
        • 2.Qb5#
      • 1...Kxd5!
    • 1.Qe6?
      • 1...Kb4
        • 2.Qb6#
      • 1...g5!
    • 1.Qxg6?
      • 1...Kb4
        • 2.Qb6#
      • 1...Kd5
        • 2.Qc6#
      • 1...e5
        • 2.Qd6#
      • 1...e6!
    • 1.Qb8?
      • 1...Kb4
        • 2.Kc6#
      • 1...Kd5
        • 2.Qe5#
      • 1...e5
        • 2.Qd6#
      • 1...e6
        • 2.Qd6#
      • 1...g5!
    • 1.Qc8+?
      • 1...Kd5
        • 2.Qc6#
      • 1...Kb4!
    • 1.Qd8?
      • threat
        • 2.Qa5#
      • 1...Kb4
        • 2.Qb6#
      • 1...Kd5!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qa5#
      • 1...Kb4
        • 2.Qa3#
      • 1...Kd5
        • 2.Kb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT,XQ(F)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • P(b);
    • Try
      • Q(F);XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
        • K(a);P-FLIGHT::QAB1(F)
        • P(c);N_GUARD::QAB1(F)
      • Refutation
        • P(c);
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR(F)+K(D)
        • K(a);P-FLIGHT::QAR1(F)
        • P(c);N_GUARD::QAB1(F)
      • Refutation
        • P(b);
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAR2(F)
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAR2(F)
    • Vars
      • K(a);S_FLIGHT::QAB1(F)
      • K(a);P-FLIGHT::QAB(F)+K(D)
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