MESON Chess Problem Database

Problem Display
PID: 265943 (3nK3/7B/3p1k2/4Rbp1/8/2R5/6r1/B4Qb1 w - - 0 1)

Castellari, Umberto

El Ajedrez Espanol, 1964

3nK3/7B/3p1k2/4Rbp1/8/2R5/6r1/B4Qb1

#2

6 + 7

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Re6+?
      • 1...Kxe6
        • 2.Qxf5#
      • 1...Kg7
        • 2.Rc7#
      • 1...Sxe6!
    • 1.Re7?
      • threat
        • 2.Qxf5#
      • 1...Rf2
        • 2.Rc2#
      • 1...Bf2
        • 2.Rce3#
      • 1...Sf7!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Qxf5#
      • 1...Sf7
        • 2.Rxf7#
      • 1...Rf2
        • 2.Re2#
      • 1...Bf2
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(f);N_GUARD,N_SPINB(c),P-FLIGHT,XR(D)::QAB1(B),XB(c)
        • K(f);N_GUARD,N_SPINB(c),S_FLIGHT::B(A)+R(C),DCHECK
      • Refutation
        • S(g);XR(D)
    • Try
      • R(D);
      • Threat
        • QAR1(B),XB(c)
      • Vars
        • R(b);N_SPINB(c),S_CUTB(a)::B(A)+R(C)
        • B(a);N_SPINB(c),S_CUTR(b)::B(A)+R(C)
      • Refutation
        • S(g);
  • Actual
    • R(C);
    • Threat
      • QAR1(B),XB(c)
    • Vars
      • S(g);N_GUARD::R1(C),XS(g)
      • R(b);N_SPINB(c),S_CUTB(a)::B(A)+R(D)
      • B(a);N_SPINB(c),S_CUTR(b)::B(A)+R(D)
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).