MESON Chess Problem Database

Problem Display
PID: 103451 (8/2p5/2R3K1/2p5/2P3Q1/3k4/2N1N3/1R6 w - - 0 1)

Anstey, Charles Thomas T

Montreal Daily Witness, 1901

8/2p5/2R3K1/2p5/2P3Q1/3k4/2N1N3/1R6

#2

7 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rd6+?
      • 1...Kxc2
        • 2.Qf5#
        • 2.Qe4#
      • 1...cxd6!
    • 1.Qd7+?
      • 1...Kxc2
        • 2.Qd1#
      • 1...Kxc4
        • 2.Sa3#
        • 2.Se3#
        • 2.Rb4#
        • 2.Qd4#
      • 1...Ke4
        • 2.Qf5#
        • 2.Qd5#
      • 1...Kxe2!
    • 1.Qd4+?
      • 1...Kxc2
        • 2.Rb2#
        • 2.Qd1#
      • 1...Kxe2
        • 2.Qe3#
      • 1...cxd4!
    • 1.Qf4?
      • 1...Kxe2
        • 2.Qe3#
      • 1...Kxc2!
  • Keys
    • 1.Qg1!
      • 1...Kxc2
        • 2.Qd1#
      • 1...Kd2
        • 2.Qd1#
      • 1...Kxe2
        • 2.Qe3#
      • 1...Kxc4
        • 2.Qd4#
      • 1...Ke4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • P(c);XR(F)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(B)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • P(b);XQ(E)
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT,XS(B)::QAB1(E)
      • K(a);P-FLIGHT::QAR1(E)
      • K(a);S_FLIGHT,XS(C)::QAR1(E)
      • K(a);P_SPINP(b),S_FLIGHT,XP(D)::QAR1(E)
      • K(a);S_FLIGHT::QAR1(E)
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).