MESON Chess Problem Database

Problem Display
PID: 173168 (8/8/1Q6/1b1BP1b1/p4B2/ppk2K2/2P2R2/2R5 w - - 0 1)

Carpenter, George Edward

Problem Observer, 2005

8/8/1Q6/1b1BP1b1/p4B2/ppk2K2/2P2R2/2R5

#2

8 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kb2
      • 2.c4#
    • 1...Kb4
      • 2.c3#
  • Tries
    • 1.Qa5+?
      • 1...Kb2
        • 2.c4#
      • 1...Kd4!
    • 1.Qc5+?
      • 1...Kb2
        • 2.c4#
      • 1...Bc4!
    • 1.cxb3+?
      • 1...Kd3
        • 2.Be4#
        • 2.Rd2#
        • 2.Qe3#
      • 1...Kb4!
  • Keys
    • 1.Ke4!
      • threat
        • 2.Qd4#
      • 1...Bd3+
        • 2.cxd3#
      • 1...Kb2
        • 2.c4#
      • 1...Kb4
        • 2.c3#
      • 1...Bc4
        • 2.cxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATE,S_FLIGHT::R(C)+P(B)
    • K(c);OGATE,P_SPINB(e),S_FLIGHT::P(B)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::R(C)+P(B)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::R(C)+P(B)
      • Refutation
        • B(e);P_SPINB(e)
    • Try
      • P(B);CHECK,XP(b)
      • Refutation
        • K(c);P_SPINB(e),S_FLIGHT
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • QAB1(H)
    • Vars
      • B(e);CHECK,OGATE::R(A)+P(B),XB(e)
      • K(c);OGATE,S_FLIGHT::R(C)+P(B)
      • K(c);OGATE,P_SPINB(e),S_FLIGHT::P(B)
      • B(e);::R(A)+P(B),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).