MESON Chess Problem Database

Problem Display
PID: 171406 (8/3kp3/4N1P1/6K1/2P2Q2/8/8/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Minimat, 1995

8/3kp3/4N1P1/6K1/2P2Q2/8/8/8

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qc7#
    • 1...Kc8
      • 2.Qc7#
  • Tries
    • 1.Kf5?
      • 1...Kc6
        • 2.Qc7#
      • 1...Kc8
        • 2.Qc7#
      • 1...Ke8!
    • 1.Qc7+?
      • 1...Ke8
        • 2.Qd8#
        • 2.Qc6#
        • 2.Qc8#
      • 1...Kxe6!
    • 1.Qb8?
      • 1...Kc6
        • 2.Qc7#
      • 1...Kxe6!
    • 1.Qf3?
      • 1...Kd6
        • 2.Qd5#
      • 1...Kxe6
        • 2.Qd5#
      • 1...Ke8
        • 2.Qc6#
      • 1...Kc8!
    • 1.Qe4?
      • 1...Kd6
        • 2.Qd5#
      • 1...Ke8
        • 2.Qc6#
      • 1...Kc8!
    • 1.c5?
      • 1...Kxe6
        • 2.Qf5#
      • 1...Kc8
        • 2.Qc7#
      • 1...Ke8
        • 2.Qa4#
      • 1...Kc6!
  • Keys
    • 1.Qe5!
      • 1...Kc6
        • 2.Qc7#
      • 1...Kc8
        • 2.Qc7#
      • 1...Ke8
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(B)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT,XS(D)::QAB1(B)
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(A);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
        • K(a);S_FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAB(B)
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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).