MESON Chess Problem Database

Problem Display
PID: 245764 (b3QB1K/p7/1pnr4/1nk1NN2/8/P1q5/2R5/b2R1B2 w - - 0 1)

Wrobel, Marian

Nepszava, 1939

b3QB1K/p7/1pnr4/1nk1NN2/8/P1q5/2R5/b2R1B2

#2

9 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Rxc4#
    • 1...Sxa3
      • 2.Bxd6#
    • 1...Sc7
      • 2.Bxd6#
    • 1...Sb4
      • 2.Qxb5#
    • 1...Sa5
      • 2.Qxb5#
    • 1...Sxe5
      • 2.Qxb5#
    • 1...Se7
      • 2.Qxb5#
    • 1...Sb8
      • 2.Qxb5#
    • 1...Sd8
      • 2.Qxb5#
  • Tries
    • 1.Rxc3+?
      • 1...Sxc3
        • 2.Sd7#
        • 2.Bxd6#
      • 1...Bxc3!
  • Keys
    • 1.Se3!
      • threat
        • 2.Rd5#
      • 1...Sxa3
        • 2.Bxd6#
      • 1...Sxe5
        • 2.Qxb5#
      • 1...Sbd4
        • 2.Sd7#
      • 1...Sc7
        • 2.Bxd6#
      • 1...Sb4
        • 2.Qxb5#
      • 1...Scd4
        • 2.Sd3#
      • 1...Sa5
        • 2.Qxb5#
      • 1...Se7
        • 2.Qxb5#
      • 1...Sb8
        • 2.Qxb5#
      • 1...Sd8
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(b);OGATE::R1(C),XQ(b)
    • S(c);N_GUARD,XP(D)::B(H),XR(g)
    • S(c);N_GUARD::B(H),XR(g)
    • S(f);OGATE::QAR1(G),XS(c)
    • S(f);OGATE,XS(E)::QAR1(G),XS(c)
    • S(f);N_SPINR(g),OGATE::QAR1(G),XS(c)
  • Tries
    • Try
      • R(C);CHECK,N_SPINS(E),XQ(b)
      • Refutation
        • B(a);P_PINS(E),XR(C)
  • Actual
    • S(F);
    • Threat
      • R1(A)
    • Vars
      • S(c);N_GUARD,XP(D)::B(H),XR(g)
      • S(f);OGATE,XS(E)::QAR1(G),XS(c)
      • S(c);N_PINS(E)::S(E)
      • S(c);N_GUARD::B(H),XR(g)
      • S(f);OGATE::QAR1(G),XS(c)
      • S(f);N_PINS(E),SBLOCK::S(E)
      • S(f);N_SPINR(g),OGATE::QAR1(G),XS(c)
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).