MESON Chess Problem Database

Problem Display
PID: 103541 (1bRqB3/2n2N2/rP1Qp3/1pp4r/1Nkp2Rp/p7/P6K/4B3 w - - 0 1)

Feldmann, Tibor (aka Florian, Tibor)

1st Prize, Nepszava, 1936

1bRqB3/2n2N2/rP1Qp3/1pp4r/1Nkp2Rp/p7/P6K/4B3

#2

10 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd6+
      • 2.Sxd6#
    • 1...Re5
      • 2.Sxe5#
    • 1...Rh6
      • 2.Se5#
    • 1...Rh7
      • 2.Se5#
    • 1...Rh8
      • 2.Se5#
    • 1...Sd5
      • 2.Rxc5#
    • 1...Sa8
      • 2.Rxd4#
    • 1...Sxe8
      • 2.Rxd4#
    • 1...cxb4
      • 2.Rxd4#
  • Tries
    • 1.Rg2?
      • threat
        • 2.Rc2#
      • 1...Qxd6+
        • 2.Sxd6#
      • 1...Sd5
        • 2.Rxc5#
      • 1...d3
        • 2.Rg4#
      • 1...cxb4!
    • 1.Qxd4+?
      • 1...Qxd4
        • 2.Sd6#
      • 1...cxd4!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qe2#
      • 1...Rxe5
        • 2.Sxe5#
      • 1...Sxe8
        • 2.Rxc5#
      • 1...cxb4
        • 2.Bxb5#
      • 1...Qd6
        • 2.Sxd6#
      • 1...Sd5
        • 2.Rxd4#
      • 1...Sa8
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(l);CHECK,XQ(G)::S(H),XQ(l)
    • R(g);N_GUARD::S(H),XR(g)
    • R(g);N_GUARD::S(H)
    • S(j);OGATE,P_PINQ(G)::R1(I),XP(f)
    • S(j);P_PINQ(G),S_CUTP(f)::R1(E),XP(c)
    • S(j);P_PINQ(G),S_CUTP(f),XB(J)::R1(E),XP(c)
    • P(f);N_GUARD,P_SPINS(j),XS(D)::R1(E),XP(c)
  • Tries
    • Try
      • R(E);N_PINP(c)
      • Threat
        • R(E)
      • Vars
        • Q(l);CHECK,XQ(G)::S(H),XQ(l)
        • S(j);OGATE,P_PINQ(G),P_SPINP(f)::R1(I),XP(f)
        • P(c);OGATEB::R(E)
      • Refutation
        • P(f);P_SPINS(j),XS(D)
    • Try
      • Q(G);CHECK,XP(c)
      • Vars
        • Q(l);P_SPINQ(l),XQ(G)::S(H)
      • Refutation
        • P(f);P_SPINP(f),P_SPINS(j),XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • R(g);XQ(G)::S(H),XR(g)
      • S(j);OGATE,P_PINQ(G),XB(J)::R1(I),XP(f)
      • P(f);P_SPINS(j),XS(D)::B(J),XP(e)
      • Q(l);N_GUARD,P_PINQ(G)::S(H),XQ(l)
      • S(j);P_PINQ(G),S_CUTP(f),S_CUTQ(l)::R1(E),XP(c)
      • S(j);OGATE,P_PINQ(G)::R1(I),XP(f)
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).