MESON Chess Problem Database

Problem Display
PID: 99466 (q2bbr2/2r2nR1/2nPk3/4P2N/Qp1Rp1P1/1P1N4/6B1/7K w - - 0 1)

Banayi, J

Magyar Sakkvilag, 1941

q2bbr2/2r2nR1/2nPk3/4P2N/Qp1Rp1P1/1P1N4/6B1/7K

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd7
      • 2.Shf4#
    • 1...Bd7
      • 2.Shf4#
    • 1...Sxd4
      • 2.Shf4#
    • 1...Sa5
      • 2.Shf4#
    • 1...Scxe5
      • 2.Sdf4#
    • 1...Sa7
      • 2.Shf4#
    • 1...Se7
      • 2.Shf4#
    • 1...Sb8
      • 2.Shf4#
    • 1...Sfxe5
      • 2.Sc5#
    • 1...Sxd6
      • 2.Rxd6#
  • Tries
    • 1.Sdf4+?
      • 1...Kxe5
        • 2.Rd5#
      • 1...Kd7!
  • Keys
    • 1.Bxe4!
      • threat
        • 2.Bf5#
      • 1...Kd7
        • 2.Bf5#
      • 1...Sxd4
        • 2.Shf4#
      • 1...Scxe5
        • 2.Sdf4#
      • 1...Sfxe5
        • 2.Sc5#
      • 1...Sxd6
        • 2.Bd5#
        • 2.Rxd6#
      • 1...Sa5
        • 2.Shf4#
      • 1...Sa7
        • 2.Shf4#
      • 1...Se7
        • 2.Shf4#
      • 1...Sb8
        • 2.Shf4#
      • 1...Sg5
        • 2.Bd5#
      • 1...Sh6
        • 2.Bd5#
      • 1...Sh8
        • 2.Bd5#

This is a version of 99030

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(e);SBLOCK::S(I)
    • B(i);SBLOCK::S(I)
    • S(c);XR(F)::S(I)
    • S(c);::S(I)
    • S(c);SBLOCK,XP(H)::S(D)
    • S(f);SBLOCK,XP(H)::S(D)
    • S(f);OGATE,XP(J)::R1(F),XS(f)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(d);P-FLIGHT,XP(H)::R1(F)
      • Refutation
        • K(d);P_SPINS(c),S_FLIGHT
  • Actual
    • B(B);XP(b)
    • Threat
      • B(B)
    • Vars
      • K(d);P_SPINS(c),S_FLIGHT::B(B)
      • S(c);P_PINB(B),XR(F)::S(I)
      • S(c);P_PINB(B),SBLOCK,XP(H)::S(D)
      • S(f);SBLOCK,XP(H)::S(D)
      • S(c);P_PINB(B)::S(I)
      • S(f);::B(B)
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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).