MESON Chess Problem Database

Problem Display
PID: 270317 (8/N3Bq2/pp3p2/bb6/p1kpQN2/7R/r1nP4/2R1n2K w - - 0 1)

Svitek, Miroslav

Probleemblad, 2021

8/N3Bq2/pp3p2/bb6/p1kpQN2/7R/r1nP4/2R1n2K

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Qxd5#
    • 1...Qe6
      • 2.Qxe6#
    • 1...Qg6
      • 2.Qd5#
      • 2.Qe6#
    • 1...Qe8
      • 2.Qd5#
      • 2.Qe6#
    • 1...Qg7
      • 2.Qd5#
      • 2.Qe6#
    • 1...Qh7
      • 2.Qd5#
      • 2.Qe6#
    • 1...Qf8
      • 2.Qd5#
      • 2.Qe6#
    • 1...Bc3
      • 2.Rxc3#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Sg2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sf3
      • 2.Qd3#
  • Tries
    • 1.Rxc2+?
      • 1...Bc3
        • 2.Rcxc3#
        • 2.Rhxc3#
      • 1...Sxc2
        • 2.Qd3#
      • 1...Rxc2!
    • 1.Qe2+?
      • 1...Sd3
        • 2.Qxd3#
      • 1...d3!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qxd4#
      • 1...Bxc6
        • 2.Qxc6#
      • 1...Bc3
        • 2.Rxc3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sf3
        • 2.Qd3#
      • 1...Qd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • Q(l);N_GUARD,P_PINQ(E)::QAB1(E),XQ(l)
    • Q(l);N_GUARD::QAB(E),XQ(l)
    • B(g);N_GUARD,N_SPINS(c)::R1(D),XB(g)
    • B(h);N_GUARD,P_PINQ(E)::QAR2(E),XB(h)
    • S(a);N_GUARD::QAB1(E)
    • S(a);N_GUARD::QAB1(E),XS(a)
  • Tries
    • Try
      • R(A);CHECK,XS(c)
      • Vars
        • S(a);XR(A)::QAB1(E)
      • Refutation
        • R(b);XR(A)
    • Try
      • Q(E);CHECK,N_PINP(f)
      • Vars
        • S(a);N_GUARD::QAB1(E),XS(a)
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • S(G);
    • Threat
      • QAR1(E),XP(f)
    • Vars
      • B(h);OGATE,P_PINQ(E),XS(G)::QAR2(E),XB(h)
      • B(g);N_GUARD,N_SPINS(c)::R1(D),XB(g)
      • S(a);N_GUARD::QAB1(E),XS(a)
      • S(a);N_GUARD::QAB1(E)
      • Q(l);N_GUARD,P_PINQ(E)::QAB1(E),XQ(l)
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).