MESON Chess Problem Database

Problem Display
PID: 93861 (B6b/2Q1N1B1/K5pr/1p1pP2P/5knR/4n3/3PPNR1/1b4r1 w - - 0 1)

Pituk, Alexander

Sachove umeni (Ceskoslovensky sach), 1952

B6b/2Q1N1B1/K5pr/1p1pP2P/5knR/4n3/3PPNR1/1b4r1

#2

12 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sh3#
    • 1...Sd1
      • 2.Rhxg4#
    • 1...Sf1
      • 2.Rhxg4#
    • 1...Sc2
      • 2.Rhxg4#
    • 1...Sxg2
      • 2.Rxg4#
    • 1...Sc4
      • 2.Rhxg4#
    • 1...Sf5
      • 2.Rhxg4#
    • 1...d4
      • 2.Sh3#
    • 1...gxh5+
      • 2.Bxh6#
    • 1...g5+
      • 2.e6#
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qxe3#
      • 1...Kg5
        • 2.Qf6#
      • 1...Sxg2
        • 2.Rxg4#
      • 1...gxh5
        • 2.Qxh6#
      • 1...Sd1
        • 2.Rhxg4#
      • 1...Sf1
        • 2.Rhxg4#
      • 1...Sc2
        • 2.Rhxg4#
        • 2.Qf6#
      • 1...Sc4
        • 2.Rhxg4#
      • 1...Sf5
        • 2.Rhxg4#
      • 1...d4
        • 2.Sh3#
      • 1...g5
        • 2.dxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(a);SBLOCK::S(C)
    • S(c);N_GUARD::R1(E),XS(e)
    • S(c);N_GUARD,XR(D)::R1(E),XS(e)
    • P(g);::S(C)
    • P(h);CHECK,N_GUARD,XP(G)::B(K),XR(i)
    • P(h);CHECK,SBLOCK::QAB(I)+P(F)
  • Actual
    • Q(I);
    • Threat
      • QAB1(I),XS(c)
    • Vars
      • K(d);S_FLIGHT::QAB1(I)
      • S(c);N_GUARD,XR(D)::R1(E),XS(e)
      • P(h);OGATE,P_PINQ(I),XP(G)::QAB(I),XR(i)
      • S(c);N_GUARD::R1(E),XS(e)
      • P(g);::S(C)
      • P(h);P_PINQ(I),SBLOCK::P(A),XS(c)
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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).