MESON Chess Problem Database

Problem Display
PID: 195151 (B2Nr3/3rQP2/3P1R1B/2nP3K/1P1k1Pp1/NR2n2p/2P5/5qb1 w - - 0 1)

Janet, Frank

Densmore MT (Pittsburgh Gazette-Times), 1918

B2Nr3/3rQP2/3P1R1B/2nP3K/1P1k1Pp1/NR2n2p/2P5/5qb1

#2

14 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd8
      • 2.Qe5#
    • 1...Rf8
      • 2.Qe5#
    • 1...Rg8
      • 2.Qe5#
    • 1...Rh8
      • 2.Qe5#
    • 1...Sc4
      • 2.Sb5#
    • 1...Sxd5
      • 2.Sc6#
    • 1...Sd3
      • 2.c3#
    • 1...Se4
      • 2.Se6#
  • Keys
    • 1.Bg7!
      • threat
        • 2.Rf5#
        • 2.Re6#
        • 2.Rg6#
        • 2.Rh6#
      • 1...Rh8+
        • 2.Rh6#
      • 1...Qxf4
        • 2.Rxf4#
      • 1...Rxd6
        • 2.Rxd6#
        • 2.Re6#
      • 1...Rdxe7
        • 2.Re6#
      • 1...Rexe7
        • 2.Re6#
      • 1...Sxd5
        • 2.Sc6#
      • 1...Rb7
        • 2.Rf5#
      • 1...Se6
        • 2.Rxe6#
      • 1...Sb7
        • 2.Rf5#
      • 1...Rg8
        • 2.Qe5#
      • 1...Sc4
        • 2.Sb5#
      • 1...Sf5
        • 2.Rxf5#
      • 1...Sd3
        • 2.c3#
      • 1...Se4
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • R(i);N_GUARD,XS(N)::QAB1(K)
    • R(i);N_GUARD::QAB1(K)
    • R(i);N_GUARD,P_PINB(J)::QAB1(K)
    • S(c);SBLOCK,S_CUTQ(a)::S(B)
    • S(c);SBLOCK,XP(F)::S(N)
    • S(g);SBLOCK::P(A)
    • S(g);N_GUARD,SBLOCK::S(N)
  • Actual
    • B(J);
    • Threat
      • DUALS(4)
    • Vars
      • R(i);CHECK::B(J)+R(I)
      • Q(a);OGATE,XP(E)::B(J)+R(I),DCHECK,XQ(a)
      • R(h);XQ(K)::B(J)+R(I)
      • R(i);XQ(K)::B(J)+R(I)
      • S(c);SBLOCK,XP(F)::S(N)
      • R(h);::B(J)+R(I)
      • S(g);::B(J)+R(I),XS(g)
      • S(g);::B(J)+R(I)
      • R(i);N_GUARD::QAB1(K)
      • S(c);SBLOCK,S_CUTQ(a)::S(B)
      • S(c);::B(J)+R(I),XS(c)
      • S(g);SBLOCK::P(A)
      • S(g);N_GUARD,SBLOCK::S(N)
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).