MESON Chess Problem Database

Problem Display
PID: 62977 (2K2b2/3B4/p7/3k1p2/4b2r/1Np3r1/2P1Q1NB/8 w - - 0 1)

Bainbridge, GE

Chess, 1944

2K2b2/3B4/p7/3k1p2/4b2r/1Np3r1/2P1Q1NB/8

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Sxe3#
    • 1...Rgg4
      • 2.Se3#
    • 1...Rg5
      • 2.Se3#
    • 1...Rg6
      • 2.Se3#
    • 1...Rg7
      • 2.Se3#
    • 1...Rg8
      • 2.Se3#
    • 1...Bxc2
      • 2.Qe6#
    • 1...Bxg2
      • 2.Qe6#
    • 1...Bd3
      • 2.Qe6#
    • 1...Bf3
      • 2.Qe6#
  • Tries
    • 1.Qd1+?
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke5
        • 2.Qd4#
      • 1...Rd3
        • 2.Se3#
      • 1...Bd3!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Qe6#
        • 2.Qd4#
      • 1...Kd6
        • 2.Qe6#
        • 2.Qc5#
      • 1...Kxc4!
    • 1.Qb5+?
      • 1...Kd6
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...axb5!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qd4#
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke5
        • 2.Qd4#
      • 1...Kd6
        • 2.Qc5#
      • 1...Rxe3
        • 2.Sxe3#
      • 1...Bxc2
        • 2.Qe6#
      • 1...Bxg2
        • 2.Qe6#
      • 1...Bd3
        • 2.Qe6#
      • 1...Bf3
        • 2.Qe6#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Bg7
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • R(b);N_GUARD::S(C),XR(b)
    • R(b);N_GUARD::S(C)
    • B(c);OGATE,XP(A)::QAB1(B)
    • B(c);OGATE,XS(C)::QAB1(B)
    • B(c);OGATE::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(B)
        • K(e);P-FLIGHT,P_SPINR(b)::QAB1(B)
        • R(b);P_SPINR(b)::S(C)
      • Refutation
        • B(c);P_SPINB(c)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(e);S_FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINR(b)::QAB1(B)
        • B(h);N_GUARD,P_SPINB(h)::QAR1(B),XB(h)
      • Refutation
        • P(g);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(e);S_FLIGHT::QAR1(B)
      • K(e);P-FLIGHT,P_SPINB(c),P_SPINR(b)::QAB1(B)
      • K(e);P-FLIGHT,P_SPINR(b)::QAB1(B)
      • R(b);XQ(B)::S(C),XR(b)
      • B(c);OGATE,XP(A)::QAB1(B)
      • B(c);OGATE,XS(C)::QAB1(B)
      • B(c);OGATE::QAB1(B)
      • B(h);N_GUARD::QAR1(B),XB(h)
      • B(h);N_GUARD::QAR1(B)
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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).