MESON Chess Problem Database

Problem Display
PID: 108634 (b1B3K1/4b3/5p1p/2Nn2N1/2RP1knP/q7/3P1P1P/B2Qr1r1 w - - 0 1)

Kiss, Janos

BTSB TT, 1952

b1B3K1/4b3/5p1p/2Nn2N1/2RP1knP/q7/3P1P1P/B2Qr1r1

#2

12 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Sd3#
      • 2.Sh3#
      • 2.Qf3#
    • 1...Qb2
      • 2.Sd3#
      • 2.Sh3#
      • 2.Qf3#
    • 1...Qb4
      • 2.Sd3#
      • 2.Sh3#
      • 2.Qf3#
    • 1...Qxc5
      • 2.Qf3#
    • 1...Qxa1
      • 2.Sd3#
      • 2.Sh3#
      • 2.Qf3#
    • 1...Qa2
      • 2.Sd3#
      • 2.Sh3#
      • 2.Qf3#
    • 1...Qd3
      • 2.Sxd3#
    • 1...Qf3
      • 2.Qxf3#
    • 1...Qh3
      • 2.Sxh3#
    • 1...Qa4
      • 2.Sd3#
      • 2.Sh3#
      • 2.Qf3#
    • 1...Qa5
      • 2.Sd3#
      • 2.Sh3#
      • 2.Qf3#
    • 1...Qa6
      • 2.Sd3#
      • 2.Sh3#
      • 2.Qf3#
    • 1...Qa7
      • 2.Sd3#
      • 2.Sh3#
      • 2.Qf3#
    • 1...Re5
      • 2.dxe5#
    • 1...Rf1
      • 2.Qxg4#
    • 1...Rh1
      • 2.Qxg4#
    • 1...Sge3
      • 2.Qf3#
    • 1...Sc3
      • 2.Sd3#
      • 2.Sh3#
    • 1...Sde3
      • 2.Sh3#
  • Tries
    • 1.Qb1?
      • threat
        • 2.Qf5#
      • 1...Qd3
        • 2.Sxd3#
      • 1...Re4
        • 2.Qxe4#
      • 1...Re5
        • 2.dxe5#
      • 1...Re6
        • 2.Scxe6#
      • 1...Sge3
        • 2.Qe4#
      • 1...Sde3
        • 2.Sce6#
      • 1...f5
        • 2.Qxf5#
      • 1...Rxb1!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qf5#
      • 1...Qd3
        • 2.Sxd3#
      • 1...Re4
        • 2.Qxe4#
      • 1...Re5
        • 2.dxe5#
      • 1...Re6
        • 2.Scxe6#
      • 1...Sge3
        • 2.Qe4#
      • 1...Sde3
        • 2.Sce6#
      • 1...f5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • Q(c);N_GUARD,XS(I)::QAR1(B)
    • Q(c);N_GUARD::S(I),XQ(c)
    • Q(c);N_GUARD::QAR1(B),XQ(c)
    • Q(c);N_GUARD::S(J),XQ(c)
    • R(a);OGATE::R(F)+P(G),XR(a)
    • R(b);N_GUARD::QAR1(B),XS(e)
    • S(e);P_PINS(J),S_CUTQ(c)::QAR1(B)
    • S(f);S_CUTQ(c)::S(J)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • Q(c);N_GUARD::S(I),XQ(c)
        • R(a);N_GUARD::QAR1(B),XR(a)
        • R(a);OGATE::R(F)+P(G),XR(a)
        • R(a);N_GUARD::S(I),XR(a)
        • S(e);P_PINS(J),S_CUTR(a)::QAR1(B)
        • S(f);S_CUTR(a)::S(I)
        • P(g);::QAR1(B),XP(g)
      • Refutation
        • R(a);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • Q(c);N_GUARD::S(I),XQ(c)
      • R(a);N_GUARD::QAR1(B),XR(a)
      • R(a);OGATE::R(F)+P(G),XR(a)
      • R(a);N_GUARD::S(I),XR(a)
      • S(e);P_PINS(J),S_CUTR(a)::QAR1(B)
      • S(f);S_CUTR(a)::S(I)
      • P(g);::QAR1(B),XP(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).