MESON Chess Problem Database

Problem Display
PID: 201626 (8/3Kn3/3p3B/3r4/2QPkpP1/R7/8/4n3 w - - 0 1)

Kovacs, Florian Janos

Bekes, 1922

8/3Kn3/3p3B/3r4/2QPkpP1/R7/8/4n3

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Qe6#
    • 1...Re5
      • 2.d5#
    • 1...Sc2
      • 2.Qd3#
    • 1...Sg2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sf3
      • 2.Qd3#
    • 1...f3
      • 2.Re3#
  • Keys
    • 1.Ke6!
      • 1...Re5+
        • 2.dxe5#
      • 1...Rxd4
        • 2.Qe2#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Ra5
        • 2.d5#
      • 1...Rb5
        • 2.d5#
      • 1...Rc5
        • 2.dxc5#
      • 1...Rf5
        • 2.d5#
      • 1...Rg5
        • 2.d5#
      • 1...Rh5
        • 2.d5#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sf3
        • 2.Qd3#
      • 1...Sf5
        • 2.Qxd5#
      • 1...Sc6
        • 2.Qxd5#
      • 1...Sg6
        • 2.Qxd5#
      • 1...Sc8
        • 2.Qxd5#
      • 1...Sg8
        • 2.Qxd5#
      • 1...f3
        • 2.Re3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • R(d);OGATE,P_SPINR(d),SBLOCK,XP(C)::QAR2(B)
    • R(d);OGATE,SBLOCK::QAR(B)+P(C)
    • S(a);N_GUARD::QAB1(B)
    • S(a);N_GUARD::QAB1(B),XS(a)
    • P(c);N_GUARD::R1(A)
  • Actual
    • K(F);S_FLIGHT
    • Vars
      • R(d);CHECK,OGATE::QAR(B)+P(C),XR(d)
      • R(d);P_SPINR(d),SBLOCK,XP(C)::QAR2(B)
      • S(a);N_GUARD::QAB1(B),XS(a)
      • R(d);OGATE::QAR(B)+P(C)
      • R(d);OGATE::QAR(B)+P(C),XR(d)
      • S(a);N_GUARD::QAB1(B)
      • S(f);N_GUARD::QAB1(B),XR(d)
      • P(c);N_GUARD::R1(A)
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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).