MESON Chess Problem Database

Problem Display
PID: 4838 (K7/3Q4/N2p4/3k4/6N1/8/4P3/8 w - - 0 1)

van Woelderen, Eduard Henri Eugene

2nd Prize, Nederlandse Schaakbond, 1892

K7/3Q4/N2p4/3k4/6N1/8/4P3/8

#2

5 + 2

4331 Schachminiaturen II 1903

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Kd4
        • 2.Qd3#
      • 1...Kc6!
    • 1.Qxd6+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kxd6!
  • Keys
    • 1.Qh7!
      • 1...Kc4
        • 2.Qd3#
      • 1...Kd4
        • 2.Qd3#
      • 1...Kc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK,N_PINP(b)
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK,XP(b)
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(D)
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
  • Actual
    • Q(D);N_PINP(b)
    • Vars
      • K(a);S_FLIGHT::QAB1(D)
      • K(a);P-FLIGHT::QAR1(D)
      • K(a);S_FLIGHT::S(C)
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