MESON Chess Problem Database

Problem Display
PID: 171402 (8/Q2N4/8/1p6/1k6/8/2K5/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Minimat, 1995

8/Q2N4/8/1p6/1k6/8/2K5/8

#2

3 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qc5#
  • Tries
    • 1.Qe3?
      • 1...Kc4
        • 2.Qc5#
        • 2.Qe4#
      • 1...Ka5
        • 2.Qa3#
      • 1...Ka4!
    • 1.Qc5+?
      • 1...Ka5
        • 2.Qa3#
      • 1...Ka4!
    • 1.Qb6?
      • 1...Ka3
        • 2.Qa5#
      • 1...Kc4
        • 2.Qc5#
      • 1...Ka4!
    • 1.Qa3+?
      • 1...Kc4
        • 2.Qc5#
      • 1...Kxa3!
    • 1.Qc7?
      • 1...Ka3
        • 2.Qa5#
      • 1...Ka4!
  • Keys
    • 1.Qa8!
      • 1...Kc4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,P_SPINP(b),S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);P_PINP(b)
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR2(B)
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);P-FLIGHT::QAR2(B)
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).