MESON Chess Problem Database

Problem Display
PID: 195159 (3K4/2p1NQpb/1pPR4/1r2p3/R1Nbkp1p/1r1qP3/1p2P1nn/1B6 w - - 0 1)

Rothstein, Louis

Densmore MT (Pittsburgh Gazette-Times), 1918

3K4/2p1NQpb/1pPR4/1r2p3/R1Nbkp1p/1r1qP3/1p2P1nn/1B6

#2

10 + 15

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...R3b4
      • 2.Bxd3#
    • 1...R5b4
      • 2.Qd5#
    • 1...Rd5
      • 2.Qxd5#
    • 1...Bc3
      • 2.Bxd3#
    • 1...Bxe3
      • 2.Sd2#
    • 1...Bc5
      • 2.Qd5#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Bg6
      • 2.Qxg6#
    • 1...Bg8
      • 2.Qg6#
      • 2.Qf5#
    • 1...Sxe3
      • 2.Sd2#
    • 1...g5
      • 2.Qxh7#
  • Tries
    • 1.Qxf4+?
      • 1...exf4
        • 2.Rxd4#
      • 1...Sxf4!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Qf5#
      • 1...Rd5+
        • 2.Qxd5#
      • 1...Bc3+
        • 2.Bxd3#
      • 1...Bxe3+
        • 2.Sd6#
      • 1...Bc5+
        • 2.Qd5#
      • 1...Bxg6
        • 2.Qxg6#
      • 1...Sxe3
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(d);N_GUARD::B(A),XQ(e)
    • R(j);N_GUARD::QAB1(I)
    • R(j);N_GUARD,P_PINR(G)::QAB1(I),XR(j)
    • B(f);P_PINR(G),S_CUTR(d)::B(A),XQ(e)
    • B(f);P_PINR(G),SBLOCK,XP(C)::R(D)+S(E),DCHECK
    • B(f);P_PINR(G),S_CUTR(j)::QAB1(I)
    • B(o);N_GUARD::QAB1(I),XB(o)
    • B(o);N_GUARD::QAB(I),XB(o)
    • S(b);SBLOCK,XP(C)::S(E)
    • P(n);OGATE::QAB(I),XB(o)
  • Tries
    • Try
      • Q(I);CHECK,XP(h)
      • Vars
        • P(k);XQ(I)::R1(G),XB(f)
      • Refutation
        • S(b);XQ(I)
  • Actual
    • R(G);
    • Threat
      • QAB1(I)
    • Vars
      • R(j);CHECK,N_GUARD::QAB1(I),XR(j)
      • B(f);CHECK,S_CUTR(d)::B(A),XQ(e)
      • B(f);CHECK,SBLOCK,XP(C)::R(D)+S(E),DCHECK
      • B(f);CHECK,S_CUTR(j)::QAB1(I)
      • B(o);OGATE,XR(G)::QAB(I),XB(o)
      • S(b);SBLOCK,XP(C)::S(E)
HTML5 logo

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).