MESON Chess Problem Database

Problem Display
PID: 46409 (1r6/r3n2b/1PPk1B2/N5n1/1P1Ppb2/4N3/B6p/3Q3K w - - 0 1)

Paslack, Rainer

HM., StrateGems, 2003

1r6/r3n2b/1PPk1B2/N5n1/1P1Ppb2/4N3/B6p/3Q3K

#2

10 + 9

145 StrateGems 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3
      • 2.Be5#
    • 1...Be5
      • 2.Bxe5#
      • 2.dxe5#
    • 1...Sg6
      • 2.Sf5#
  • Tries
    • 1.d5?
      • threat
        • 2.Sec4#
        • 2.Sac4#
      • 1...Rxa5
        • 2.Sc4#
      • 1...Bxe3
        • 2.Sc4#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...Sxc6
        • 2.dxc6#
      • 1...Rxb6!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qxf4#
      • 1...Rxa5
        • 2.Qd7#
      • 1...Bxe3
        • 2.Be5#
      • 1...Sxc6
        • 2.Sac4#
      • 1...Bg3
        • 2.Qxg3#
      • 1...Be5
        • 2.Bxe5#
        • 2.dxe5#
      • 1...Sf3
        • 2.Qe6#
      • 1...Sh3
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sf7
        • 2.Qe6#
      • 1...Sd5
        • 2.Sec4#
      • 1...Sg6
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD,XS(D)::B(J)
    • S(g);N_GUARD,S_CUTB(h)::S(D)
  • Tries
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);XS(G)::S(D)
        • B(c);XS(D)::S(G)
        • S(g);OGATE,P_SPINS(g),XP(F)::QAR1(A),XS(g)
        • S(g);OGATE,XP(I)::QAR(A)+P(F),XS(g)
      • Refutation
        • R(i);XP(H)
  • Actual
    • Q(A);
    • Threat
      • QAB(A),XB(c)
    • Vars
      • R(f);N_GUARD,XS(G)::QAR1(A)
      • B(c);N_GUARD,XS(D)::B(J)
      • S(g);SBLOCK,XP(I)::S(G)
      • B(c);OGATEB::QAB(A),XB(c)
      • S(d);N_GUARD::QAR1(A)
      • S(d);N_GUARD::QAR1(A),XS(d)
      • S(g);SBLOCK::S(D)
      • S(g);N_GUARD,S_CUTB(h)::S(D)
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).