MESON Chess Problem Database

Problem Display
PID: 178604 (3R4/1p1Np1p1/1R2p1B1/4P3/2k1rpN1/4b2Q/PB6/5K2 w - - 0 1)

Marysko, Milos

Boletim da UBP, 1982

3R4/1p1Np1p1/1R2p1B1/4P3/2k1rpN1/4b2Q/PB6/5K2

#2

10 + 8

6490 yacpdb 2018
3713 Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qb3#
    • 1...Bg1
      • 2.Qb3#
    • 1...Bd2
      • 2.Qb3#
    • 1...Bf2
      • 2.Qb3#
    • 1...Bd4
      • 2.Qb3#
    • 1...Bc5
      • 2.Qb3#
    • 1...Bxb6
      • 2.Qb3#
  • Tries
    • 1.Sxe3+?
      • 1...Kd3
        • 2.Sc5#
        • 2.Sf6#
        • 2.Sb8#
        • 2.Sf8#
      • 1...Rxe3
        • 2.Qxe6#
      • 1...fxe3!
  • Keys
    • 1.Qf3!
      • 1...Kd3
        • 2.Qe2#
      • 1...Kd5
        • 2.Qxe4#
      • 1...Rxe5
        • 2.Sgxe5#
      • 1...Bxb6
        • 2.Qb3#
      • 1...Rd4
        • 2.Rc8#
      • 1...Bc1
        • 2.Qxe4#
        • 2.Qb3#
      • 1...Bg1
        • 2.Qb3#
      • 1...Bd2
        • 2.Qxe4#
        • 2.Qb3#
      • 1...Bf2
        • 2.Qb3#
      • 1...Bd4
        • 2.Qb3#
      • 1...Bc5
        • 2.Qb3#

Anticipated by 255037(1977)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE::QAB1(D)
    • B(a);OGATE,XR(G)::QAB1(D)
  • Tries
    • Try
      • S(E);CHECK,XB(a)
      • Vars
        • R(c);XS(E)::QAB(D),XP(e)
      • Refutation
        • P(d);XS(E)
  • Actual
    • Q(D);
    • Vars
      • K(b);P_SPINB(a),P_SPINR(c),S_FLIGHT::QAB1(D)
      • K(b);P_SPINR(c),S_FLIGHT::QAB1(D),XR(c)
      • R(c);XP(F)::S(E),XR(c)
      • B(a);OGATE,XR(G)::QAB1(D)
      • R(c);S_CUTB(a)::R(J)
      • B(a);OGATE::QAB1(D)
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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).