MESON Chess Problem Database

Problem Display
PID: 1951 (q7/3B4/1p6/2knr3/1R3n1Q/B3P3/8/3R1b1K w - - 0 1)

Capraez, Friedrich

La Rivista, 1859

q7/3B4/1p6/2knr3/1R3n1Q/B3P3/8/3R1b1K

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4
      • 2.Rb5#
    • 1...Se2
      • 2.Rc4#
      • 2.Rb5#
    • 1...Sg2
      • 2.Rc4#
      • 2.Rb5#
    • 1...Sd3
      • 2.Rc4#
      • 2.Rb5#
    • 1...Sh3
      • 2.Rc4#
      • 2.Rb5#
    • 1...Sh5
      • 2.Rc4#
      • 2.Rb5#
    • 1...Se6
      • 2.Rc4#
      • 2.Rb5#
    • 1...Sg6
      • 2.Rc4#
      • 2.Rb5#
  • Tries
    • 1.Re4+?
      • 1...Sb4
        • 2.Bxb4#
      • 1...Qxa3!
  • Keys
    • 1.Rxd5+!
      • 1...Kxd5
        • 2.Rd4#
      • 1...Qxd5+
        • 2.Re4#
      • 1...Rxd5
        • 2.Ra4#
      • 1...Sxd5
        • 2.Rc4#
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK::B(C)+R(E),DCHECK
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • S(d);N_GUARD,P_PINR(E),P_SPINS(d)::B(C),XS(d)
      • Refutation
        • Q(g);XB(C)
  • Actual
    • R(A);CHECK,P_SPINR(A),XS(d)
    • Vars
      • K(c);P-FLIGHT,XR(A)::R1(E)
      • Q(g);CHECK,SBLOCK,XR(A)::B(C)+R(E)
      • R(e);SBLOCK,XR(A)::B(C)+R(E)
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).