MESON Chess Problem Database

Problem Display
PID: 213019 (3B3K/3P1k1p/b3p1N1/4pB2/1r6/2p3p1/rnQ5/5R2 w - - 0 1)

Vladimirov, V?

Stella Polaris, 1967

3B3K/3P1k1p/b3p1N1/4pB2/1r6/2p3p1/rnQ5/5R2

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Bd3#
    • 1...Rc4
      • 2.Be4#
    • 1...Rb5
      • 2.Bd3#
      • 2.Bh3#
      • 2.Be4#
      • 2.Bg4#
    • 1...Rb6
      • 2.Bd3#
    • 1...Rb7
      • 2.Bd3#
    • 1...Rb8
      • 2.Bd3#
    • 1...Bc4
      • 2.Bd3#
    • 1...Bb7
      • 2.Be4#
    • 1...Bc8
      • 2.Be4#
    • 1...Sc4
      • 2.Bd3#
      • 2.Bh3#
      • 2.Be4#
      • 2.Bg4#
    • 1...exf5
      • 2.Qxf5#
    • 1...hxg6
      • 2.Bxg6#
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qxe6#
      • 1...Rxb3
        • 2.Bd3#
      • 1...hxg6
        • 2.Bxe6#
      • 1...Rc4
        • 2.Be4#
      • 1...Rb6
        • 2.Bd3#
      • 1...Bc4
        • 2.Bd3#
      • 1...Sc4
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(e);N_GUARD::R(A)+B(C)
    • R(e);S_CUTB(g)::R(A)+B(C)
    • R(e);N_GUARD,P_PINB(F)::R(A)+B(C)
    • B(g);S_CUTR(e)::R(A)+B(C)
    • B(g);N_GUARD::R(A)+B(C)
    • P(h);OGATE,P_SPINP(h),XB(C)::QAR2(B),XP(h)
    • P(j);OGATE,XS(D)::R(A)+B(C),DCHECK,XP(j)
  • Actual
    • Q(B);P_PINP(h)
    • Threat
      • QAB1(B),XP(h)
    • Vars
      • R(e);N_GUARD,N_SPINP(h),XQ(B)::R(A)+B(C)
      • P(j);SBLOCK,XS(D)::R(A)+B(C),DCHECK,XP(h)
      • R(e);N_SPINP(h),S_CUTB(g)::R(A)+B(C)
      • R(e);N_GUARD::R(A)+B(C)
      • B(g);N_SPINP(h),S_CUTR(e)::R(A)+B(C)
      • S(b);N_SPINP(h),S_CUTB(g),S_CUTR(e)::R(A)+B(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).