MESON Chess Problem Database

Problem Display
PID: 245017 (B3N2Q/1n4p1/b1R1P3/1p1k4/Np2r3/8/1B2R2p/7K w - - 0 1)

Bata, Lorinc

Schackvarlden, 1942

B3N2Q/1n4p1/b1R1P3/1p1k4/Np2r3/8/1B2R2p/7K

#2

9 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Rd6#
    • 1...Rd4
      • 2.Rc5#
    • 1...Rf4
      • 2.Rc5#
    • 1...Rg4
      • 2.Rc5#
    • 1...Rh4
      • 2.Rc5#
    • 1...Rxe6
      • 2.Rc5#
    • 1...Sa5
      • 2.Sb6#
      • 2.Sc7#
    • 1...Sc5
      • 2.Sb6#
    • 1...Sd6
      • 2.Sc7#
    • 1...Sd8
      • 2.Sb6#
      • 2.Sc7#
  • Tries
    • 1.Rd2+?
      • 1...Kxc6
        • 2.Rd6#
      • 1...Rd4!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qxe4#
      • 1...Kxc6
        • 2.Qxe4#
      • 1...Rxe2
        • 2.Rd6#
      • 1...Rxh4
        • 2.Rc5#
      • 1...Rxe6
        • 2.Rc5#
      • 1...Re3
        • 2.Rd6#
      • 1...Rc4
        • 2.Rd6#
      • 1...Rd4
        • 2.Rc5#
      • 1...Rf4
        • 2.Rc5#
      • 1...Rg4
        • 2.Rc5#
      • 1...Re5
        • 2.Rd6#
      • 1...Sc5
        • 2.Sb6#
      • 1...Sd6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK::R1(E)
    • R(c);::R1(E)
    • R(c);XP(F)::R1(E)
    • S(g);::S(D)
    • S(g);::S(H)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(e);OGATE,P_SPINS(g),S_FLIGHT,XR(E)::R1(C)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • Q(I);
    • Threat
      • QAB1(I),XR(c)
    • Vars
      • K(e);P_SPINS(g),S_FLIGHT,XR(E)::QAB(I),XR(c)
      • R(c);XR(C)::R1(E)
      • R(c);XQ(I)::R1(E)
      • R(c);XP(F)::R1(E)
      • R(c);::R1(E)
      • S(g);::S(D)
      • S(g);::S(H)
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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).