MESON Chess Problem Database

Problem Display
PID: 93870 (1N3Bb1/3K1P2/1p1Pp3/1pk4r/1n3N2/1P6/3P1b2/Qn6 w - - 0 1)

Prikryl, Bohuzlav

Ceske listy sachove, 1900

1N3Bb1/3K1P2/1p1Pp3/1pk4r/1n3N2/1P6/3P1b2/Qn6

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sxe6#
    • 1...Be1
      • 2.d4#
    • 1...Bg3
      • 2.d4#
    • 1...Bh4
      • 2.d4#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sa2
      • 2.Sa6#
    • 1...Sc2
      • 2.Sa6#
    • 1...Sd3
      • 2.Sa6#
    • 1...Sd5
      • 2.Sd3#
      • 2.Sa6#
    • 1...Sa6
      • 2.Sxa6#
    • 1...Sc6
      • 2.Sa6#
  • Tries
    • 1.Kc7?
      • threat
        • 2.Sd7#
        • 2.d7#
      • 1...Sa6+
        • 2.Sxa6#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sa2
        • 2.Sa6#
        • 2.d7#
      • 1...Sc2
        • 2.Sa6#
        • 2.d7#
      • 1...Sd3
        • 2.Sa6#
        • 2.d7#
      • 1...Sc6
        • 2.Sa6#
      • 1...Rd5
        • 2.Sxe6#
        • 2.Sd7#
      • 1...Bh4
        • 2.Sd7#
        • 2.d4#
      • 1...Sd5+!
    • 1.Ke8?
      • threat
        • 2.d7#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sd5
        • 2.Sd3#
      • 1...Sc6
        • 2.Sa6#
      • 1...Rd5
        • 2.Sxe6#
      • 1...Bh4
        • 2.d4#
      • 1...Bxf7+!
    • 1.Qe5+?
      • 1...Sd5
        • 2.Sd3#
        • 2.Sa6#
      • 1...Rxe5!
  • Keys
    • 1.Kc8!
      • threat
        • 2.d7#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sd5
        • 2.Sd3#
      • 1...Sc6
        • 2.Sa6#
      • 1...Rd5
        • 2.Sxe6#
      • 1...Bh4
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(f);P_PINP(E),SBLOCK::S(D),XP(h)
    • B(b);N_GUARD::P(B)
    • S(a);N_GUARD::QAR2(A),XS(a)
    • S(c);N_GUARD::S(H)
    • S(c);N_GUARD::S(H),XS(c)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(c);CHECK,N_GUARD::S(H),XS(c)
        • S(a);N_GUARD::QAR2(A),XS(a)
        • S(c);N_GUARD::S(H)
      • Refutation
        • S(c);CHECK
    • Try
      • K(F);S_FLIGHT
      • Threat
        • B(I)+P(E)
      • Vars
        • S(a);N_GUARD::QAR2(A),XS(a)
        • S(c);N_GUARD,SBLOCK::S(D)
        • S(c);N_GUARD,SBLOCK::S(H)
        • R(f);SBLOCK::S(D),XP(h)
        • B(b);N_GUARD::P(B)
      • Refutation
        • B(i);CHECK,XP(G)
    • Try
      • Q(A);CHECK
      • Refutation
        • R(f);XQ(A)
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • B(I)+P(E)
    • Vars
      • S(a);N_GUARD::QAR2(A),XS(a)
      • S(c);N_GUARD,SBLOCK::S(D)
      • S(c);N_GUARD,SBLOCK::S(H)
      • R(f);SBLOCK::S(D),XP(h)
      • B(b);N_GUARD::P(B)
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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).