MESON Chess Problem Database

Problem Display
PID: 89764 (1K6/6p1/Ppppp1Q1/2Pk4/P1N1n1n1/3N4/2PRB2b/Br6 w - - 0 1)

Casa, Alex

Die Schwalbe, 1995

1K6/6p1/Ppppp1Q1/2Pk4/P1N1n1n1/3N4/2PRB2b/Br6

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qxe4#
    • 1...Rc1
      • 2.Sxb6#
    • 1...Rd1
      • 2.Sxb6#
    • 1...Re1
      • 2.Sxb6#
    • 1...Rf1
      • 2.Sxb6#
    • 1...Rg1
      • 2.Sxb6#
    • 1...Rh1
      • 2.Sxb6#
    • 1...Sxc5
      • 2.Sb4#
      • 2.Sf4#
    • 1...Sf2
      • 2.Se3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Se5
      • 2.Se3#
    • 1...Sf6
      • 2.Se3#
    • 1...Sh6
      • 2.Se3#
    • 1...bxc5+
      • 2.Sb4#
    • 1...b5
      • 2.Sb6#
    • 1...dxc5+
      • 2.Sf4#
    • 1...e5
      • 2.Qf7#
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qxe4#
      • 1...bxc5+
        • 2.Sdb2#
      • 1...dxc5+
        • 2.Sde5#
      • 1...Kxc4
        • 2.Qxe4#
      • 1...Re1
        • 2.Sxb6#
      • 1...Sf2
        • 2.Se3#
      • 1...Sf6
        • 2.Se3#
      • 1...e5
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 9
  • Sets
    • K(e);S_FLIGHT,XS(G)::QAR2(J),XS(c)
    • R(a);N_GUARD::S(G),XP(f)
    • S(d);N_GUARD::S(G)
    • S(d);N_GUARD::S(G),XS(d)
    • P(f);CHECK,SBLOCK,XP(H)::R(C)+S(E),DCHECK
    • P(f);S_CUTR(a)::S(G)
    • P(h);CHECK,SBLOCK,XP(H)::R(C)+S(E),DCHECK
    • P(i);OGATEB::QAB(J)
  • Actual
    • B(D);P_PINS(c)
    • Threat
      • QAB1(J),XS(c)
    • Vars
      • P(f);CHECK,SBLOCK,XP(H)::R(C)+S(E)
      • P(h);CHECK,SBLOCK,XP(H)::R(C)+S(E)
      • K(e);N_SPINS(c),S_FLIGHT,XS(G)::QAR2(J),XS(c)
      • R(a);N_GUARD::S(G),XP(f)
      • S(d);N_GUARD::S(G)
      • P(i);OGATEB::QAB(J)
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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).