MESON Chess Problem Database

Problem Display
PID: 193698 (5r2/p7/3p4/2P2Qb1/KN2prP1/pPp1pk2/2N3R1/3q2nB w - - 0 1)

Rothstein, Louis

Pittsburgh Gazette-Times, 1915

5r2/p7/3p4/2P2Qb1/KN2prP1/pPp1pk2/2N3R1/3q2nB

#2

9 + 12

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qe2
      • 2.Sd4#
    • 1...Qa1
      • 2.Sd4#
    • 1...Qb1
      • 2.Sd4#
    • 1...Qc1
      • 2.Sd4#
    • 1...Qe1
      • 2.Sxe1#
      • 2.Sd4#
    • 1...Qf1
      • 2.Sd4#
    • 1...Qd3
      • 2.Se1#
    • 1...Qd4
      • 2.Se1#
      • 2.Sxd4#
    • 1...Qd5
      • 2.Se1#
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sd4#
      • 1...Qxc2
        • 2.Se1#
      • 1...Qxd3
        • 2.Se1#
      • 1...dxc5
        • 2.Se5#
      • 1...Bf6
        • 2.Qxf4#
      • 1...Se2
        • 2.Rg1#
      • 1...e2
        • 2.Rxg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::S(B)
  • Actual
    • S(F);
    • Threat
      • S(B)
    • Vars
      • Q(a);N_GUARD,P_PINP(D),XS(B)::S(F)
      • Q(a);N_GUARD,XS(F)::S(B)
      • P(j);N_GUARD,XP(H)::S(F)
      • B(i);N_GUARD,S_CUTR(l)::QAR1(I),XR(h)
      • S(b);SBLOCK::B(A)+R(C)
      • P(e);SBLOCK::B(A)+R(C),XS(b)
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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).