MESON Chess Problem Database

Problem Display
PID: 16600 (8/3r1pN1/2B3Qp/NR2PnP1/2Pk4/6rq/2PP1n2/2K2bB1 w - - 0 1)

Pituk, Alexander

1st Prize, Slovensky Sach, 1941

8/3r1pN1/2B3Qp/NR2PnP1/2Pk4/6rq/2PP1n2/2K2bB1

#2

12 + 9

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Sxf5#
    • 1...Qh1
      • 2.Sxf5#
    • 1...Qh2
      • 2.Sxf5#
    • 1...Qh4
      • 2.Sxf5#
    • 1...Qh5
      • 2.Sxf5#
    • 1...Rg4
      • 2.Sxf5#
    • 1...Bd3
      • 2.c3#
    • 1...Se3
      • 2.c3#
    • 1...Sh4
      • 2.Qe4#
    • 1...Sd6
      • 2.Rd5#
    • 1...Se7
      • 2.Qe4#
    • 1...Sxg7
      • 2.Qe4#
    • 1...fxg6
      • 2.Se6#
    • 1...f6
      • 2.Se6#
  • Tries
    • 1.Bxf2+?
      • 1...Se3
        • 2.Qe4#
        • 2.c3#
      • 1...Re3!
  • Keys
    • 1.Qxf7!
      • threat
        • 2.Se6#
      • 1...Bxc4
        • 2.Qxc4#
      • 1...Sxg7
        • 2.Qf4#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Rd6
        • 2.Qa7#
      • 1...Re7
        • 2.Qd5#
      • 1...Se3
        • 2.Sb3#
      • 1...Sh4
        • 2.Qf4#
      • 1...Sd6
        • 2.Qd5#
      • 1...Se7
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • Q(d);N_GUARD::S(L),XS(f)
    • R(c);S_CUTQ(d)::S(L),XS(f)
    • B(a);SBLOCK,S_CUTR(c)::P(C)
    • S(f);N_SPINS(b),S_CUTR(c)::P(C)
    • S(f);OGATE::QAR1(K)
    • S(f);S_CUTR(h)::R1(G)
    • S(f);OGATE,XS(L)::QAR1(K)
    • P(i);N_GUARD,XQ(K)::S(L)
    • P(i);N_GUARD::S(L)
  • Tries
    • Try
      • B(B);CHECK,XS(b)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • Q(K);XP(i)
    • Threat
      • S(L)
    • Vars
      • B(a);OGATE,XP(E)::QAR1(K),XB(a)
      • S(f);OGATE,XS(L)::QAR2(K)
      • R(h);N_GUARD::QAR1(K),XR(h)
      • R(h);OGATE::QAB(K)
      • R(h);N_GUARD::QAR1(K)
      • S(f);N_SPINS(b),S_CUTR(c)::S(F)
      • S(f);OGATE::QAR2(K)
      • S(f);S_CUTR(h)::QAR1(K)
HTML5 logo

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).