Problem Display
PID: 69722 (4N3/8/3P2P1/2RPkp2/1P1rbN2/3B2P1/K1P5/B3R3 w - - 0 1)

Amirov, Talip Khasanovich

Sinfonie Scacchistiche, 1972

4N3/8/3P2P1/2RPkp2/1P1rbN2/3B2P1/K1P5/B3R3

#2

13 + 4


SOLUTION


  • SOUND
  • Tries
    • 1.Rc3?
      • 1...Rxd3
        • 2.Rxd3#
      • 1...Rxd5
        • 2.Rc5#
      • 1...Rc4
        • 2.Rxc4#
      • 1...Rxb4!
    • 1.c3?
      • threat
        • 2.cxd4#
      • 1...Rxd3
        • 2.Sxd3#
      • 1...Rxb4
        • 2.cxb4#
      • 1...Rxd5
        • 2.Rxd5#
        • 2.c4#
      • 1...Rc4!
  • Keys
    • 1.Be2!
      • 1...Bxd5+
        • 2.Bc4#
      • 1...Bxc2
        • 2.Bd3#
      • 1...Bh1
        • 2.Bf3#
      • 1...Bg2
        • 2.Bf3#
      • 1...Bd3
        • 2.Bxd3#
      • 1...Bf3
        • 2.Bxf3#

This is a version of 97382

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(I);N_PINR(a)
      • Vars
        • R(a);OGATE,XB(E)::B(A)+R(I),XR(a)
        • R(a);OGATEB,XP(J)::B(A)+R(I)
        • R(a);OGATEB::B(A)+R(I),XR(a)
      • Refutation
        • R(a);XP(G)
    • Try
      • P(D);N_PINR(a)
      • Threat
        • P(D),XR(a)
      • Vars
        • R(a);XB(E)::S(H),XR(a)
        • R(a);OGATE,XP(G)::B(A)+P(D),XR(a)
      • Refutation
        • R(a);
  • Actual
    • B(E);N_PINB(b)
    • Vars
      • B(b);CHECK,OGATEB,P_SPINB(b),XP(J)::R(B)+B(E)
      • B(b);OGATEB,XP(D)::R(B)+B(E)
      • B(b);OGATEB::R(B)+B(E)
      • B(b);OGATEB::R(B)+B(E),XB(b)


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).