MESON Chess Problem Database

Problem Display
PID: 214599 (3K4/1p1N1p2/3p4/3k4/2ppp3/3b3Q/3N4/2RBR3 w - - 0 1)

Perry, CA

Chicago Tribune, 1877

3K4/1p1N1p2/3p4/3k4/2ppp3/3b3Q/3N4/2RBR3

#2

7 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kc7?
      • threat
        • 2.Qf5#
      • 1...f5
        • 2.Qxf5#
      • 1...e3!
  • Keys
    • 1.Qxd3!
      • threat
        • 2.Qxc4#
        • 2.Qxe4#
      • 1...Kc6
        • 2.Qxc4#
      • 1...Ke6
        • 2.Qxe4#
      • 1...cxd3
        • 2.Bb3#
      • 1...exd3
        • 2.Bf3#
      • 1...e3
        • 2.Qxc4#
        • 2.Qe4#
      • 1...c3
        • 2.Qc4#
        • 2.Qxe4#
      • 1...b5
        • 2.Qxe4#
      • 1...f5
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Threat
        • QAR2(E)
      • Vars
        • P(h);::QAR2(E),XP(h)
      • Refutation
        • P(d);
  • Actual
    • Q(E);P_PINP(c),XB(a)
    • Threat
      • DUALS(2)
    • Vars
      • K(e);N_SPINP(c),P_SPINP(b),S_FLIGHT::QAR2(E),XP(b)
      • K(e);N_SPINP(c),P_SPINP(d),S_FLIGHT::QAR2(E),XP(d)
      • P(b);N_SPINP(c),OGATEB,XQ(E)::B(B)
      • P(d);N_SPINP(c),OGATEB,XQ(E)::B(B)
      • P(g);::QAB1(E),XP(d)
      • P(h);::QAB1(E),XP(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).