MESON Chess Problem Database

Problem Display
PID: 23004 (3K4/Q4B2/8/pk6/8/8/3N4/8 w - - 0 1)

Havel, Miroslav

Illustrovany svet, 1903

3K4/Q4B2/8/pk6/8/8/3N4/8

#2

4 + 2

6024 Bohemian Garnets 1923
81 Chess 1960
4312 Ceske Granaty 1975
3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Tries
    • 1.Qb6+?
      • 1...Ka4
        • 2.Qb3#
      • 1...Kxb6!
    • 1.Qb7+?
      • 1...Ka4
        • 2.Qb3#
      • 1...Kc5!
  • Keys
    • 1.Sb3!
      • 1...Ka4
        • 2.Qxa5#
      • 1...Kb4
        • 2.Qxa5#
      • 1...Kc6
        • 2.Qa6#
      • 1...a4
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(A);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::QAR1(B),XP(a)
      • K(b);P-FLIGHT::QAB1(B),XP(a)
      • K(b);S_FLIGHT::QAR2(B)
      • P(a);SBLOCK::QAR2(B)
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