MESON Chess Problem Database

Problem Display
PID: 202404 (1b1qn3/3p1N2/1p6/pR1n3N/r3k1P1/r4p1R/p1P2P2/Bb3Q1K w - - 0 1)

Takacs, Peter

2nd Prize, Sydsvenska Dagbladet Snallposten, 1923

1b1qn3/3p1N2/1p6/pR1n3N/r3k1P1/r4p1R/p1P2P2/Bb3Q1K

#2

10 + 13

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qg5
      • 2.Sxg5#
    • 1...Qc7
      • 2.Sg5#
    • 1...Qc8
      • 2.Sg5#
    • 1...Rd3
      • 2.Qxd3#
    • 1...Rc4
      • 2.Qxc4#
    • 1...Sc3
      • 2.Qd3#
    • 1...Sb4
      • 2.Qc4#
    • 1...Sf4
      • 2.Sg3#
    • 1...Sdf6
      • 2.Sg5#
    • 1...Sdc7
      • 2.Re5#
    • 1...Se7
      • 2.Sg5#
    • 1...Sef6
      • 2.Sg5#
    • 1...Sec7
      • 2.Sd6#
  • Tries
    • 1.Rb4+?
      • 1...Sxb4
        • 2.Qc4#
      • 1...axb4
        • 2.Qc4#
      • 1...Rxb4!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qxd5#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Sc3
        • 2.Qd3#
      • 1...Se3
        • 2.Qxf3#
      • 1...Sb4
        • 2.Qd4#
      • 1...Sf4
        • 2.Sg3#
      • 1...Sdf6
        • 2.Sg5#
      • 1...Sdc7
        • 2.Re5#
      • 1...Se7
        • 2.Sg5#
      • 1...Sef6
        • 2.Sg5#
      • 1...Sec7
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • Q(l);N_GUARD::S(J),XQ(l)
    • Q(l);N_GUARD::S(J)
    • R(c);N_GUARD::QAB1(B),XR(c)
    • R(e);N_GUARD::QAR2(B),XR(e)
    • S(h);S_CUTR(c)::QAB1(B)
    • S(h);S_CUTR(e)::QAR2(B)
    • S(h);SBLOCK,S_CUTB(k)::S(I)
    • S(h);S_CUTQ(l)::S(J)
    • S(h);OGATE::R1(H)
    • S(m);S_CUTQ(l)::S(J)
    • S(m);N_GUARD,S_CUTB(k)::S(J)
  • Tries
    • Try
      • R(H);CHECK
      • Vars
        • S(h);XR(H)::QAR2(B)
        • P(g);XR(H)::QAR2(B)
      • Refutation
        • R(e);XR(H)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XS(h)
    • Vars
      • Q(l);N_GUARD::S(J),XQ(l)
      • R(c);N_GUARD::QAB1(B),XR(c)
      • R(e);N_GUARD::QAR1(B),XR(e)
      • S(h);S_CUTR(c)::QAB1(B)
      • S(h);S_CUTR(c)::QAB1(B),XP(d)
      • S(h);S_CUTR(e)::QAR1(B)
      • S(h);SBLOCK,S_CUTB(k)::S(I)
      • S(h);S_CUTQ(l)::S(J)
      • S(h);OGATE::R1(H)
      • S(m);S_CUTQ(l)::S(J)
      • S(m);N_GUARD,S_CUTB(k)::S(J)
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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).