MESON Chess Problem Database

Problem Display
PID: 109753 (8/1p3K2/3P4/2k1NN2/8/1Q6/8/8 w - - 0 1)

Zalewski, Mieczyzlaw

Express Wieczorny, 1958

8/1p3K2/3P4/2k1NN2/8/1Q6/8/8

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...b6
      • 2.Qc4#
  • Tries
    • 1.Ke6?
      • 1...b6
        • 2.Qc4#
      • 1...b5!
    • 1.Kf6?
      • 1...b6
        • 2.Qc4#
      • 1...b5!
    • 1.Kg6?
      • 1...b6
        • 2.Qc4#
      • 1...b5!
    • 1.Ke7?
      • 1...b6
        • 2.Qc4#
      • 1...b5!
    • 1.Kg7?
      • 1...b6
        • 2.Qc4#
      • 1...b5!
    • 1.Ke8?
      • 1...b6
        • 2.Qc4#
      • 1...b5!
    • 1.Kf8?
      • 1...b6
        • 2.Qc4#
      • 1...b5!
    • 1.Kg8?
      • 1...b6
        • 2.Qc4#
      • 1...b5!
    • 1.Qb2?
      • 1...Kd5
        • 2.Qd4#
      • 1...b5
        • 2.Qd4#
      • 1...b6!
    • 1.Qb4+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxb4!
    • 1.Qb6+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxb6!
    • 1.d7?
      • 1...b6
        • 2.Qc4#
      • 1...b5!
  • Keys
    • 1.Qa4!
      • 1...Kd5
        • 2.Qd4#
      • 1...Kb6
        • 2.Sd7#
      • 1...b5
        • 2.Qd4#
      • 1...b6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAR1(A)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
    • Try
      • P(D);
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::S(B)
      • P(b);SBLOCK::QAB1(A)
      • P(b);SBLOCK::QAR1(A)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).