MESON Chess Problem Database

Problem Display
PID: 110788 (8/8/5p2/3N1P2/4NP1n/3BPk1P/4p1nQ/4b2K w - - 0 1)

Gruber, Bratoljub

2nd Prize, Yugoslav National Ty., 1959-1960

8/8/5p2/3N1P2/4NP1n/3BPk1P/4p1nQ/4b2K

#2

9 + 6

6490 yacpdb 2009
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Qg3#
    • 1...Bf2
      • 2.Sd2#
    • 1...Bc3
      • 2.Qg3#
    • 1...Bg3
      • 2.Qxg3#
    • 1...Bb4
      • 2.Qg3#
    • 1...Ba5
      • 2.Qg3#
    • 1...Sxe3
      • 2.Qxe2#
    • 1...Sxf4
      • 2.Qxf4#
    • 1...Sxf5
      • 2.Qxg2#
    • 1...Sg6
      • 2.Qxg2#
  • Tries
    • 1.Kg1?
      • 1...Sxe3
        • 2.Qxe2#
      • 1...Sxf4
        • 2.Qxf4#
      • 1...Sxf5
        • 2.Qxg2#
      • 1...Bd2
        • 2.Sxd2#
        • 2.Qg3#
      • 1...Bc3
        • 2.Qg3#
      • 1...Bg3
        • 2.Sd2#
        • 2.Qxg3#
      • 1...Bb4
        • 2.Qg3#
      • 1...Ba5
        • 2.Qg3#
      • 1...Sg6
        • 2.Qxg2#
      • 1...Bf2+!
    • 1.Bb1?
      • 1...Sxf4
        • 2.Qxf4#
      • 1...Sxf5
        • 2.Qxg2#
      • 1...Bd2
        • 2.Qg3#
      • 1...Bf2
        • 2.Sd2#
      • 1...Bc3
        • 2.Qg3#
      • 1...Bg3
        • 2.Qxg3#
      • 1...Bb4
        • 2.Qg3#
      • 1...Ba5
        • 2.Qg3#
      • 1...Sg6
        • 2.Qxg2#
      • 1...Sxe3!
    • 1.Bc2?
      • 1...Sxf4
        • 2.Qxf4#
      • 1...Sxf5
        • 2.Qxg2#
      • 1...Bd2
        • 2.Qg3#
      • 1...Bf2
        • 2.Sd2#
      • 1...Bc3
        • 2.Qg3#
      • 1...Bg3
        • 2.Qxg3#
      • 1...Bb4
        • 2.Qg3#
      • 1...Ba5
        • 2.Qg3#
      • 1...Sg6
        • 2.Qxg2#
      • 1...Sxe3!
  • Keys
    • 1.Qg1!
      • 1...Sxe3
        • 2.Qxe3#
      • 1...Sxf4
        • 2.Qg4#
      • 1...Sxf5
        • 2.Qxg2#
      • 1...Bd2
        • 2.Qf2#
      • 1...Bf2
        • 2.Qxf2#
      • 1...Bc3
        • 2.Qf2#
      • 1...Bg3
        • 2.Sd2#
      • 1...Bb4
        • 2.Qf2#
      • 1...Ba5
        • 2.Qf2#
      • 1...Sg6
        • 2.Qxg2#

This anticipates 159879(1966)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 8
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAR1(B)
    • B(a);N_GUARD,SBLOCK::S(F)
    • B(a);N_GUARD::QAR1(B),XB(a)
    • S(c);OGATE,XP(D)::QAB1(B),XP(b)
    • S(c);OGATE,XP(G)::QAR1(B),XS(c)
    • S(e);N_GUARD,XP(I)::QAB1(B),XS(c)
    • S(e);N_GUARD::QAB1(B),XS(c)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • S(c);OGATE,XP(D)::QAB1(B),XP(b)
        • S(c);OGATE,XP(G)::QAR1(B),XS(c)
        • S(e);N_GUARD,XP(I)::QAB1(B),XS(c)
        • B(a);N_GUARD::QAR1(B)
        • S(e);N_GUARD::QAB1(B),XS(c)
      • Refutation
        • B(a);CHECK
    • Try
      • B(C);
      • Vars
        • S(c);OGATE,XP(G)::QAR1(B),XS(c)
        • S(e);N_GUARD,XP(I)::QAB1(B),XS(c)
        • B(a);N_GUARD::QAR1(B)
        • B(a);N_GUARD,SBLOCK::S(F)
        • B(a);N_GUARD::QAR1(B),XB(a)
        • S(e);N_GUARD::QAB1(B),XS(c)
      • Refutation
        • S(c);XP(D)
    • Try
      • B(C);
      • Vars
        • S(c);OGATE,XP(G)::QAR1(B),XS(c)
        • S(e);N_GUARD,XP(I)::QAB1(B),XS(c)
        • B(a);N_GUARD::QAR1(B)
        • B(a);N_GUARD,SBLOCK::S(F)
        • B(a);N_GUARD::QAR1(B),XB(a)
        • S(e);N_GUARD::QAB1(B),XS(c)
      • Refutation
        • S(c);XP(D)
  • Actual
    • Q(B);
    • Vars
      • S(c);OGATE,XP(D)::QAR1(B),XS(c)
      • S(c);OGATE,XP(G)::QAB1(B)
      • S(e);N_GUARD,XP(I)::QAB1(B),XS(c)
      • B(a);N_GUARD::QAR1(B)
      • B(a);N_GUARD::QAR1(B),XB(a)
      • B(a);N_GUARD,SBLOCK::S(F)
      • S(e);N_GUARD::QAB1(B),XS(c)
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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).