MESON Chess Problem Database

Problem Display
PID: 106197 (2Br1RbN/2prbn2/K1p4p/1n2kPP1/3p3R/5Q2/8/8 w - - 0 1)

Pituk, Alexander

Praca, 1947

2Br1RbN/2prbn2/K1p4p/1n2kPP1/3p3R/5Q2/8/8

#2

8 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Qg3#
      • 2.Qf4#
    • 1...Rd6
      • 2.Qe4#
    • 1...Bd6
      • 2.Sg6#
      • 2.Qe4#
    • 1...Bh7
      • 2.Sxf7#
    • 1...Sbd6
      • 2.Sg6#
    • 1...Sfd6
      • 2.Sg6#
  • Keys
    • 1.Qxc6!
      • threat
        • 2.Qe6#
      • 1...Kxf5
        • 2.Qd5#
      • 1...Sxg5
        • 2.Sg6#
      • 1...Sxh8
        • 2.Re4#
      • 1...Rd6
        • 2.Re4#
      • 1...Bd6
        • 2.Qe4#
      • 1...Sbd6
        • 2.Qc5#
      • 1...Sfd6
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(g);SBLOCK::QAR1(A)
    • B(k);N_GUARD::S(H),XS(i)
    • S(b);SBLOCK::S(H)
    • S(i);SBLOCK::S(H)
  • Actual
    • Q(A);XP(d)
    • Threat
      • QAR1(A)
    • Vars
      • K(c);P-FLIGHT,P_SPINR(g),P_SPINS(i),XP(C)::QAR2(A)
      • S(i);XP(D)::S(H)
      • S(i);XS(H)::R1(B)
      • R(g);P_PINQ(A)::R1(B)
      • B(h);SBLOCK::QAR1(A)
      • S(b);S_CUTB(h),S_CUTR(g)::QAR2(A)
      • S(i);::S(H)
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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).