MESON Chess Problem Database

Problem Display
PID: 176078 (rB2Q3/PB1K1R2/3N4/1p2Ppp1/bR1nNk2/1p2ppbP/2p1p3/3q4 w - - 0 1)

Feldmann, Tibor (aka Florian, Tibor)

3rd Prize, Schach-Echo, 1936

rB2Q3/PB1K1R2/3N4/1p2Ppp1/bR1nNk2/1p2ppbP/2p1p3/3q4

#2

11 + 14

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Rxf5#
    • 1...Se6
      • 2.Rxf5#
  • Tries
    • 1.Sf6?
      • threat
        • 2.Sd5#
        • 2.Sh5#
      • 1...Be1
        • 2.Sh5#
      • 1...Bf2
        • 2.Sh5#
      • 1...Bh2
        • 2.Sh5#
      • 1...Bh4
        • 2.Sh5#
      • 1...f2
        • 2.Sh5#
      • 1...g4!
    • 1.Rxd4?
      • threat
        • 2.Sd2#
        • 2.Rxf5#
      • 1...Qxd4
        • 2.Rxf5#
      • 1...Qa1
        • 2.Sc3#
        • 2.Rxf5#
      • 1...Qd2
        • 2.Sxd2#
        • 2.Rxf5#
      • 1...Qd3
        • 2.Rxf5#
      • 1...Be1
        • 2.Rxf5#
      • 1...Bf2
        • 2.Rxf5#
      • 1...Bh2
        • 2.Rxf5#
      • 1...Bh4
        • 2.Rxf5#
      • 1...g4
        • 2.Rxf5#
      • 1...b4+!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Sxd4#
      • 1...Sxf5+
        • 2.Sd2#
      • 1...Sc6+
        • 2.Sfd6#
      • 1...Se6+
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(i);N_GUARD,P_PINS(E)::R1(I),XP(l)
  • Tries
    • Try
      • S(C);N_PINP(l),P_PINS(i)
      • Threat
        • DUALS(2)
      • Vars
        • B(g);::S(C)
        • P(f);::S(C)
      • Refutation
        • P(m);
    • Try
      • R(B);XS(i)
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);P_PINS(E),XR(B)::R1(I),XP(l)
        • Q(a);::R1(I),XP(l)
        • B(g);::R1(I),XP(l)
        • P(m);::R1(I),XP(l)
      • Refutation
        • P(k);CHECK
  • Actual
    • S(E);XP(l)
    • Threat
      • R(I)+S(E),XS(i)
    • Vars
      • S(i);CHECK,P_SPINS(i),XS(E)::R(B)+S(C)
      • S(i);CHECK,N_GUARD::R(I)+S(E)
      • S(i);CHECK::R(I)+S(E)
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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).