MESON Chess Problem Database

Problem Display
PID: 269009 (B3R3/8/K1N3P1/P1P2Pp1/2p1n2N/Q1P1k1r1/3pPRp1/2n3B1 w - - 0 1)

Chicco, Adriano

Scacchi e Scienze Applicate, 1989

B3R3/8/K1N3P1/P1P2Pp1/2p1n2N/Q1P1k1r1/3pPRp1/2n3B1

#2

14 + 8

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Sxg2#
    • 1...Rh3
      • 2.Sxg2#
    • 1...Sxe2
      • 2.Rf3#
    • 1...d1S
      • 2.Qxc1#
    • 1...d1B
      • 2.Qxc1#
  • Keys
    • 1.Se5!
      • threat
        • 2.Sxc4#
      • 1...Sxc5+
        • 2.Qxc5#
      • 1...Sxe2
        • 2.Rf3#
      • 1...Sxf2
        • 2.Sd3#
      • 1...Sxc3
        • 2.Sc6#
      • 1...Rf3
        • 2.Sxg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(e);N_GUARD::S(F),XP(c)
    • S(a);SBLOCK,XP(B)::B(A)+R(C),DCHECK
    • P(b);OGATEB::QAB(D),XS(a)
  • Actual
    • S(K);N_PINS(g)
    • Threat
      • S(K),XP(f)
    • Vars
      • S(g);CHECK,OGATE,XP(H)::QAB(D),XS(g)
      • S(a);SBLOCK,XP(B)::B(A)+R(C),DCHECK
      • S(g);P_SPINS(g),XR(C)::R(N)+S(K)
      • S(g);P_SPINS(g),XP(E)::R(N)+S(K)
      • R(e);N_GUARD::S(F),XP(c)
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).