MESON Chess Problem Database

Problem Display
PID: 119066 (4R3/8/8/1KPk4/2p4R/8/1bPPP3/3r4 w - - 0 1)

White, Alain Campbell

More White Rooks, 1911

4R3/8/8/1KPk4/2p4R/8/1bPPP3/3r4

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.e4#
  • Tries
    • 1.Rd4+?
      • 1...Bxd4
        • 2.e4#
      • 1...Kxd4!
    • 1.Rh5+?
      • 1...Kd4
        • 2.e3#
      • 1...Be5!
    • 1.c3?
      • threat
        • 2.Rd4#
        • 2.Rh5#
        • 2.e4#
      • 1...Rxd2
        • 2.Rh5#
        • 2.e4#
      • 1...Re1
        • 2.Rd4#
        • 2.Rh5#
      • 1...Rf1
        • 2.Rd4#
        • 2.e4#
      • 1...Rg1
        • 2.Rd4#
        • 2.e4#
      • 1...Rh1
        • 2.Rd4#
        • 2.e4#
      • 1...Bxc3!
  • Keys
    • 1.d4!
      • threat
        • 2.Re5#
      • 1...Rxd4
        • 2.Rh5#
      • 1...Bxd4
        • 2.e4#
      • 1...cxd4 ep
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::P(C)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • B(b);SBLOCK,XR(D)::P(C)
      • Refutation
        • K(d);P-FLIGHT,XR(D)
    • Try
      • R(D);CHECK
      • Vars
        • K(d);P-FLIGHT::P(C)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • P(A);
      • Threat
        • DUALS(3)
      • Refutation
        • B(b);XP(A)
  • Actual
    • P(B);
    • Threat
      • R1(G)
    • Vars
      • R(a);SBLOCK,XP(B)::R(D)
      • B(b);SBLOCK,XP(B)::P(C)
      • P(c);EP,OGATE,XP(B)::P(A)
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).