MESON Chess Problem Database

Problem Display
PID: 274388 (bb1Q4/p3n1n1/R3PNp1/4k1K1/3p2B1/2r2p2/2r1p2N/8 w - - 0 1)

Sebastia, V

Probleemblad, 1953

bb1Q4/p3n1n1/R3PNp1/4k1K1/3p2B1/2r2p2/2r1p2N/8

#2

7 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Sxf3#
    • 1...Rc7
      • 2.Qd6#
    • 1...Bc6
      • 2.Qxb8#
    • 1...Bd6
      • 2.Qxd6#
    • 1...Sc6
      • 2.Qd5#
    • 1...Sxe6+
      • 2.Rxe6#
  • Tries
    • 1.Bf5?
      • threat
        • 2.Shg4#
        • 2.Sfg4#
      • 1...Sxe6+
        • 2.Rxe6#
      • 1...Sexf5
        • 2.Shg4#
      • 1...Sgxf5
        • 2.Shg4#
      • 1...Bd6
        • 2.Shg4#
        • 2.Qxd6#
      • 1...gxf5!
  • Keys
    • 1.Bh3!
      • threat
        • 2.Shg4#
      • 1...Sxe6+
        • 2.Rxe6#
      • 1...Rc6
        • 2.Sxf3#
      • 1...Bc6
        • 2.Qxb8#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Sc6
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD,S_CUTB(k)::S(A),XP(d)
    • R(c);S_CUTB(l)::QAB1(G)
    • B(k);S_CUTR(c)::QAB(G),XB(l)
    • B(l);N_GUARD::QAB1(G),XB(l)
    • S(i);N_GUARD,S_CUTB(k)::QAR1(G)
    • S(j);CHECK,OGATE,XP(E)::R1(D),XS(j)
  • Tries
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(j);CHECK,OGATE,XP(E)::R1(D),XS(j)
        • S(i);XB(B)::S(A)
        • S(j);XB(B)::S(A)
      • Refutation
        • P(g);XB(B)
  • Actual
    • B(B);
    • Threat
      • S(A)
    • Vars
      • S(j);CHECK,OGATE,XP(E)::R1(D),XS(j)
      • R(c);N_GUARD,S_CUTB(k)::S(A),XP(d)
      • B(k);S_CUTR(c)::QAB(G),XB(l)
      • B(l);N_GUARD::QAB1(G),XB(l)
      • S(i);N_GUARD,S_CUTB(k)::QAR1(G)
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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).