Problem Display
PID: 51007 (8/3K4/1p1B1p1N/1Rb5/3pk3/3R1r1P/2r3Q1/1B4n1 w - - 0 1)

Aizikowicz, Jakov

The Spectator, 1958

8/3K4/1p1B1p1N/1Rb5/3pk3/3R1r1P/2r3Q1/1B4n1

#2

8 + 8


5454 Near Snap 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Se2
      • 2.Qxf3#
    • 1...Sxh3
      • 2.Qxf3#
  • Keys
    • 1.Sf5!
      • 1...Kxd3
        • 2.Qxc2#
      • 1...Kd5
        • 2.Rxd4#
      • 1...Kxf5
        • 2.Qg4#
      • 1...Rxg2
        • 2.Rxd4#
      • 1...Bxd6
        • 2.Rxd4#
      • 1...Sxh3
        • 2.Qxf3#
      • 1...Rc1
        • 2.Rxd4#
      • 1...Ra2
        • 2.Rxd4#
      • 1...Rb2
        • 2.Rxd4#
      • 1...Rd2
        • 2.Rxd4#
      • 1...Re2
        • 2.Rxd4#
      • 1...Rf2
        • 2.Rxd4#
      • 1...Rc3
        • 2.Rxd4#
      • 1...Rc4
        • 2.Rxd4#
      • 1...Ba3
        • 2.Rxd4#
      • 1...Bb4
        • 2.Rxd4#
      • 1...Se2
        • 2.Qxf3#

Anticipated by 48642(1877)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(B),XR(c)
    • S(a);N_GUARD,XP(D)::QAB1(B),XR(c)
  • Actual
    • S(G);
    • Vars
      • K(e);N_SPINR(c),OGATEB,P_SPINR(b),S_FLIGHT,XR(C)::QAB1(B),XR(b)
      • K(e);P_SPINB(f),P_SPINP(d),S_FLIGHT::R1(C),XP(d)
      • K(e);N_SPINR(c),P_SPINB(f),S_FLIGHT,XS(G)::QAB1(B)
      • R(b);N_SPINR(c),XQ(B)::B(A)+R(C),DCHECK,XP(d)
      • B(f);N_GUARD,XB(F)::R1(C),XP(d)
      • S(a);N_GUARD,XP(D)::QAB1(B),XR(c)
      • R(b);::B(A)+R(C),DCHECK,XP(d)
      • B(f);N_GUARD::R1(C),XP(d)
      • S(a);N_GUARD::QAB1(B),XR(c)


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).