MESON Chess Problem Database

Problem Display
PID: 197675 (3b2b1/N6p/pp1P3P/5Q1R/p1k4r/K1p1P2p/1n5P/4R3 w - - 0 1)

Chobanyan, Shamil

Suomen Shakki, 1986

3b2b1/N6p/pp1P3P/5Q1R/p1k4r/K1p1P2p/1n5P/4R3

#2

9 + 11

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Qxe4#
    • 1...Bc7
      • 2.Rxh4#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Sd1
      • 2.Qf1#
    • 1...c2
      • 2.Qxc2#
    • 1...a5
      • 2.Qb5#
  • Keys
    • 1.Rd1!
      • 1...Rxh5
        • 2.Rd4#
      • 1...Sxd1
        • 2.Qf1#
      • 1...Bd5
        • 2.Qxd5#
      • 1...c2
        • 2.Qxc2#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Re4
        • 2.Qxe4#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Rg4
        • 2.Qxg4#
      • 1...Bg5
        • 2.Qc8#
      • 1...Bf6
        • 2.Qc8#
      • 1...Bc7
        • 2.Rxh4#
      • 1...Be7
        • 2.Qc8#
      • 1...Be6
        • 2.Qxe6#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Sd3
        • 2.Qxd3#
      • 1...a5
        • 2.Qb5#
      • 1...b5
        • 2.Qc5#

Anticipated by 51931(1960)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD::QAR2(E),XR(f)
    • B(j);N_GUARD::R(F),XR(f)
    • B(k);N_GUARD::QAB1(E),XB(k)
    • S(a);N_GUARD::QAB(E)
    • P(b);OGATEB::QAR2(E),XP(b)
    • P(g);N_GUARD::QAB1(E)
  • Actual
    • R(A);
    • Vars
      • R(f);N_GUARD,XR(F)::R1(A)
      • S(a);N_GUARD,XR(A)::QAB(E)
      • B(k);N_GUARD::QAB1(E),XB(k)
      • P(b);OGATEB::QAR2(E),XP(b)
      • R(f);N_GUARD::R1(A),XR(f)
      • R(f);N_GUARD::QAR2(E),XR(f)
      • R(f);N_GUARD::QAR(E),XR(f)
      • B(j);N_GUARD::QAR(E)
      • B(j);N_GUARD::R(F),XR(f)
      • B(j);N_GUARD,P_PINP(G)::QAR(E)
      • B(k);N_GUARD::QAB(E),XB(k)
      • S(a);N_GUARD::QAB1(E),XS(a)
      • P(g);N_GUARD::QAB1(E)
      • P(h);N_GUARD::QAR1(E)
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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).