MESON Chess Problem Database

Problem Display
PID: 110033 (n4B2/pR3p2/P1k2N2/1r1N1K2/B2pp3/3nQ3/2bp4/1r2b3 w - - 0 1)

Cacciari, Europe

Il Littorale, 1929-1931

n4B2/pR3p2/P1k2N2/1r1N1K2/B2pp3/3nQ3/2bp4/1r2b3

#2

8 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bxb5#
    • 1...Rc1
      • 2.Bxb5#
    • 1...Rd1
      • 2.Bxb5#
    • 1...Bb3
      • 2.Bxb5#
    • 1...Sb2
      • 2.Bxb5#
    • 1...Sb4
      • 2.Bxb5#
    • 1...Sb6
      • 2.Rc7#
    • 1...Sc7
      • 2.Rxc7#
  • Keys
    • 1.Qxe4!
      • threat
        • 2.Qe8#
      • 1...Sc1
        • 2.Qxc2#
      • 1...Sb2
        • 2.Bxb5#
      • 1...Sf2
        • 2.Qxc2#
      • 1...Sb4
        • 2.Bxb5#
      • 1...Sf4
        • 2.Qxc2#
      • 1...Sc5
        • 2.Sb4#
      • 1...Se5
        • 2.Sb4#
      • 1...Sb6
        • 2.Rc7#
      • 1...Sc7
        • 2.Rxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD::B(B),XR(h)
    • B(c);S_CUTR(a)::B(B),XR(h)
    • S(e);S_CUTR(a)::B(B),XR(h)
    • S(l);N_GUARD::R1(G)
    • S(l);N_GUARD::R1(G),XS(l)
  • Actual
    • Q(A);XP(g)
    • Threat
      • QAB(A)
    • Vars
      • S(e);OGATE,P_PINQ(A)::QAR(A),XB(c)
      • S(e);P_PINQ(A),S_CUTR(a)::B(B),XR(h)
      • S(e);N_PINS(C),P_PINQ(A)::QAB(A)+S(C),DCHECK
      • S(l);N_GUARD::R1(G)
      • S(l);N_GUARD::R1(G),XS(l)
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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).