MESON Chess Problem Database

Problem Display
PID: 110529 (4Q2b/r2p3p/P2P1p2/R3nk2/p5Rp/2NN2pB/6Pq/Kn3b2 w - - 0 1)

Buchwald, Julius

Tolna megyei nepujsag, 1965-1966

4Q2b/r2p3p/P2P1p2/R3nk2/p5Rp/2NN2pB/6Pq/Kn3b2

#2

10 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Rxg3#
      • 2.Rg6#
      • 2.Rg7#
      • 2.Rg8#
    • 1...Rxa6
      • 2.Qxd7#
    • 1...Ra8
      • 2.Qxd7#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qh5#
      • 1...h5
        • 2.Qxh5#
        • 2.Qg6#
      • 1...Sxc3!
    • 1.Rxh4+?
      • 1...Kg5
        • 2.Rh5#
        • 2.Qh5#
      • 1...Qxh3!
    • 1.Raxa4?
      • threat
        • 2.Raf4#
      • 1...Sxd3
        • 2.Qe4#
      • 1...Sxg4
        • 2.Ra5#
      • 1...Sc4
        • 2.Qe4#
      • 1...Sg6
        • 2.Qe4#
      • 1...Rxa6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qh5#
      • 1...Sxg4
        • 2.Sd3#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sg6
        • 2.Qe4#
      • 1...Sf7
        • 2.Qe4#
      • 1...h5
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(j);N_GUARD,XP(H)::QAB(J),XP(k)
    • R(j);N_GUARD::QAB(J),XP(k)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR2(J)
      • Refutation
        • S(a);XS(C)
    • Try
      • R(F);CHECK,XP(f)
      • Refutation
        • Q(c);XB(E)
    • Try
      • R(G);N_PINS(g),XP(e)
      • Threat
        • R1(G)
      • Vars
        • S(g);OGATE,XS(D)::QAB1(J)
        • S(g);OGATEB,P_SPINS(g),XR(F)::R(G)
        • S(g);OGATE::QAB1(J)
      • Refutation
        • R(j);P_PINR(G),XP(H)
  • Actual
    • S(D);N_PINS(g)
    • Threat
      • QAR2(J)
    • Vars
      • S(g);P_SPINS(g),XR(F)::R(G)+S(D)
      • S(g);OGATE::QAB1(J)
      • P(l);::QAR2(J),XP(l)
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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).