MESON Chess Problem Database

Problem Display
PID: 9331 (2b2K2/2pk4/8/R3P3/1Q6/8/8/8 w - - 0 1)

Makovsky, Karel

Palaczek, 1881

2b2K2/2pk4/8/R3P3/1Q6/8/8/8

#2

4 + 3

5689 The Chess Monthly (Hoffer) 1882
3757 Schachminiaturen I 1902
3360 Simple Two-move Themes 1924
5501 Chess Cameos 1936
2012 Miniature Chess Problems from Many Countries 1981
3295 Einfuhrung in die Welt des Schachproblem 1984
3310 2345 Chess Problems 1997
5626 European Junior Chess Solving Championship 2005
145 StrateGems 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qb5#
    • 1...Ke6
      • 2.Qg4#
    • 1...Kd8
      • 2.Qe7#
    • 1...c6
      • 2.Qd6#
      • 2.Qe7#
  • Tries
    • 1.Rd5+?
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6!
    • 1.Qa4+?
      • 1...Ke6
        • 2.Qg4#
      • 1...Kd8
        • 2.Qe8#
      • 1...c6!
    • 1.Qd4+?
      • 1...Ke6
        • 2.Qg4#
      • 1...Kc6!
    • 1.e6+?
      • 1...Kxe6
        • 2.Qe7#
      • 1...Kd8
        • 2.Qe7#
        • 2.Qh4#
      • 1...Kc6!
  • Keys
    • 1.Qb8!
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Qxc8#
      • 1...Kd8
        • 2.Rd5#
      • 1...c6
        • 2.Qd6#
      • 1...Ba6
        • 2.Qe8#
      • 1...Bb7
        • 2.Qe8#
      • 1...c5
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(A)
    • K(b);S_FLIGHT::QAB(A)
    • K(b);P-FLIGHT::QAB1(A)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(A)
        • K(b);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • P(a);P_SPINP(a)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(C)::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);S_FLIGHT::QAB(A),XB(c)
      • K(b);P-FLIGHT,P_SPINB(c)::R(B)
      • P(a);OGATE::QAR1(A)
      • B(c);OGATE::QAB1(A)
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