MESON Chess Problem Database

Problem Display
PID: 16656 (4R2b/1K3N2/1p4r1/3k4/5Rp1/Bp1r4/4N3/1B5b w - - 0 1)

Cornell, CFT

Chess, 1942

4R2b/1K3N2/1p4r1/3k4/5Rp1/Bp1r4/4N3/1B5b

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Re5#
    • 1...Rg7
      • 2.Re5#
    • 1...Be5
      • 2.Rxe5#
  • Tries
    • 1.Rd8+?
      • 1...Rd6
        • 2.Rxd6#
      • 1...Ke6+!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Sf4#
      • 1...Rf3
        • 2.Be4#
      • 1...Rd4
        • 2.Sc3#
      • 1...Rf6
        • 2.Re5#
      • 1...Be5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(g);S_CUTB(h)::R1(G)
    • R(g);P_PINS(F),S_CUTB(h)::R1(G)
    • B(h);N_GUARD::R1(G),XB(h)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::R1(G),XR(g)
      • Refutation
        • K(e);CHECK,S_FLIGHT
  • Actual
    • R(D);
    • Threat
      • S(B)
    • Vars
      • R(c);OGATE::B(A)
      • R(c);N_GUARD,S_CUTB(h)::S(B)
      • R(g);S_CUTB(h)::R1(G)
      • B(h);N_GUARD::R1(G),XB(h)
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).