MESON Chess Problem Database

Problem Display
PID: 194356 (8/2KRpP2/8/2k5/B1N3r1/4P3/4b3/1R2B3 w - - 0 1)

Popa, Nicolae

Sachmatija, 2019

8/2KRpP2/8/2k5/B1N3r1/4P3/4b3/1R2B3

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Rc1#
    • 1...Rxc4
      • 2.Rb5#
    • 1...Bxc4
      • 2.Bb4#
  • Tries
    • 1.Rd4?
      • threat
        • 2.Bb4#
        • 2.Rb5#
      • 1...Bxc4
        • 2.Bb4#
      • 1...Rxd4!
    • 1.Rd5+?
      • 1...Kxc4
        • 2.Bb3#
      • 1...Kxd5!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Rd5#
      • 1...Rd4
        • 2.exd4#
      • 1...Rg5
        • 2.Bb4#
      • 1...Bf3
        • 2.Rb5#
      • 1...Bc4
        • 2.Bb4#
      • 1...e6
        • 2.f8Q#
        • 2.f8B#

FEATURES

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