MESON Chess Problem Database

Problem Display
PID: 193422 (2Q5/rN3P2/2PP4/P1p3p1/KNk1rq1R/5np1/bB1p3p/3B2b1 w - - 0 1)

Szigeti, Jozsef

Pesti Naplo, 1914

2Q5/rN3P2/2PP4/P1p3p1/KNk1rq1R/5np1/bB1p3p/3B2b1

#2

11 + 12

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.Qe6#
    • 1...Qe5
      • 2.Be2#
    • 1...Qxd6
      • 2.Sxd6#
    • 1...Qf5
      • 2.Be2#
    • 1...Qf6
      • 2.Be2#
    • 1...Qxf7
      • 2.Be2#
    • 1...Re2
      • 2.Bxe2#
    • 1...Re6
      • 2.Qxe6#
    • 1...Rxa5+
      • 2.Sxa5#
    • 1...Be3
      • 2.Be2#
    • 1...Bb1
      • 2.Bb3#
    • 1...Bb3+
      • 2.Bxb3#
    • 1...Se5
      • 2.Qe6#
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qd5#
      • 1...Rxa5+
        • 2.Sxa5#
      • 1...Bb3+
        • 2.Bxb3#
      • 1...Qxd6
        • 2.Sxd6#
      • 1...Qxf5
        • 2.Be2#
      • 1...cxb4
        • 2.Qb5#
      • 1...Qe5
        • 2.Be2#
      • 1...Rd4
        • 2.Qc2#
        • 2.Qxc5#
      • 1...Re5
        • 2.Qc2#
        • 2.Qd3#
      • 1...Se5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(i);P_SPINR(h)::QAB(K)
    • Q(i);P_SPINR(h)::B(A)
    • Q(i);P_SPINR(h),XP(H)::S(I),XQ(i)
    • Q(i);P_SPINR(h),XP(J)::B(A)
    • R(h);N_GUARD,P_SPINQ(i)::B(A),XR(h)
    • R(h);N_GUARD,P_SPINQ(i)::QAB(K),XR(h)
    • R(l);CHECK,XP(F)::S(I),XR(l)
    • B(a);S_CUTR(h)::B(A)
    • B(b);N_GUARD::B(A)
    • B(b);CHECK,N_GUARD::B(A),XB(b)
    • S(e);S_CUTR(h)::QAB(K)
  • Actual
    • Q(K);
    • Threat
      • QAB1(K)
    • Vars
      • R(l);CHECK,XP(F)::S(I),XR(l)
      • B(b);CHECK,N_GUARD::B(A),XB(b)
      • Q(i);P_SPINR(h),XP(H)::S(I),XQ(i)
      • Q(i);P_SPINR(h),XQ(K)::B(A)
      • P(j);OGATE,XS(D)::QAB1(K)
      • Q(i);P_SPINR(h)::B(A)
      • S(e);S_CUTR(h)::QAB(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).