MESON Chess Problem Database

Problem Display
PID: 107319 (1B6/8/2BQP3/r2NN2K/1r2k1pR/3p4/3pqpp1/4Rb2 w - - 0 1)

Zilahi, Zoltan

Smer, 1963

1B6/8/2BQP3/r2NN2K/1r2k1pR/3p4/3pqpp1/4Rb2

#2

9 + 10

6490 yacpdb 2009
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qxb4#
  • Tries
    • 1.Qf8?
      • threat
        • 2.Rxg4#
        • 2.Qf4#
      • 1...Kd4
        • 2.Qxb4#
      • 1...Rxb8
        • 2.Qf4#
      • 1...dxe1Q
        • 2.Qf4#
      • 1...dxe1S
        • 2.Qf4#
      • 1...dxe1B
        • 2.Qf4#
      • 1...dxe1R
        • 2.Qf4#
      • 1...fxe1Q
        • 2.Qf4#
      • 1...fxe1S
        • 2.Qf4#
      • 1...fxe1B
        • 2.Qf4#
      • 1...fxe1R
        • 2.Qf4#
      • 1...g1Q
        • 2.Qf4#
      • 1...g1R
        • 2.Qf4#
      • 1...Rxd5!
  • Keys
    • 1.Sxg4!
      • threat
        • 2.Qf4#
      • 1...Rxd5+
        • 2.Qxd5#
      • 1...Kf3
        • 2.Sh2#
      • 1...Kd4
        • 2.Qxb4#
      • 1...Kf5
        • 2.Se7#

Anticipated by 42735(1940-1941)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(h);N_SPINQ(c),P-FLIGHT::QAR2(G),XR(g)
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(h);N_SPINQ(c),P-FLIGHT::QAR2(G),XR(g)
        • R(g);XB(I)::QAR1(G)
        • P(b);N_SPINQ(c),XR(A)::QAR1(G)
        • P(d);N_SPINQ(c),XR(A)::QAR1(G)
        • P(e);::QAR1(G)
      • Refutation
        • R(j);P_PINS(D),P_SPINR(j),XS(C)
  • Actual
    • S(D);P_SPINS(D),XP(i)
    • Threat
      • QAR1(G)
    • Vars
      • R(j);CHECK,OGATE,P_SPINR(j),XS(C)::QAB1(G),XR(j)
      • K(h);N_PINS(D),N_SPINQ(c),P_PINS(C),S_FLIGHT::S(D)
      • K(h);N_SPINQ(c),P-FLIGHT::QAR2(G),XR(g)
      • K(h);N_SPINQ(c),S_FLIGHT::S(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).