MESON Chess Problem Database

Problem Display
PID: 243398 (1Qr3Nq/B1n2B2/rnR2p2/3N1p2/p3kP2/2P5/2K3P1/8 w - - 0 1)

Bata, Lorinc

Nepszava, 1943

1Qr3Nq/B1n2B2/rnR2p2/3N1p2/p3kP2/2P5/2K3P1/8

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qh1
      • 2.Sgxf6#
    • 1...Qh2
      • 2.Sgxf6#
    • 1...Qh3
      • 2.Sgxf6#
    • 1...Qh5
      • 2.Sgxf6#
    • 1...Qh7
      • 2.Sgxf6#
    • 1...Sc4
      • 2.Rxc4#
    • 1...Sbxd5
      • 2.Rc4#
    • 1...Sd7
      • 2.Rc4#
      • 2.Qb4#
    • 1...Sba8
      • 2.Rc4#
      • 2.Qb4#
    • 1...Scxd5
      • 2.Re6#
  • Tries
    • 1.Qxb6?
      • threat
        • 2.Rc4#
        • 2.Qe3#
        • 2.Qd4#
        • 2.Qb4#
      • 1...Rxb6
        • 2.Rc4#
      • 1...Sxd5
        • 2.Qd4#
      • 1...Qh3
        • 2.Sgxf6#
        • 2.Rc4#
        • 2.Qd4#
        • 2.Qb4#
      • 1...Rb8
        • 2.Rc4#
        • 2.Qe3#
        • 2.Qd4#
      • 1...Sb5
        • 2.Qe3#
      • 1...Sa8
        • 2.Qe3#
        • 2.Qd4#
        • 2.Qb4#
      • 1...Se8
        • 2.Qe3#
        • 2.Qd4#
        • 2.Qb4#
      • 1...Se6!
  • Keys
    • 1.Bh5!
      • threat
        • 2.Bf3#
      • 1...Kxd5
        • 2.Bf3#
      • 1...Qxh5
        • 2.Sgxf6#
      • 1...Sbxd5
        • 2.Rc4#
      • 1...Scxd5
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • Q(i);N_GUARD::S(J),XP(f)
    • Q(i);N_GUARD,P_PINP(B)::S(J),XP(f)
    • S(e);N_GUARD::R(F),XS(e)
    • S(e);N_GUARD,XS(E)::R(F)
    • S(g);N_GUARD,SBLOCK,XS(E)::R(F)
  • Tries
    • Try
      • Q(I);XS(e)
      • Threat
        • DUALS(4)
      • Vars
        • R(d);XQ(I)::R(F)
        • S(g);XS(E)::QAR1(I)
        • S(g);::QAR1(I)
      • Refutation
        • S(g);
  • Actual
    • B(H);
    • Threat
      • B(H)
    • Vars
      • K(b);S_FLIGHT,XS(E)::B(H)
      • Q(i);N_GUARD,XB(H)::S(J),XP(f)
      • S(e);N_GUARD,SBLOCK,XS(E)::R(F)
      • S(g);N_GUARD,SBLOCK,XS(E)::R(F)
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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).