MESON Chess Problem Database

Problem Display
PID: 187909 (4N3/3pR1p1/2b3P1/3k3N/pP1b4/P3p2p/1n2Q1nP/3R1K2 w - - 0 1)

Bolus, Andrew

Norwich Mercury, 1910

4N3/3pR1p1/2b3P1/3k3N/pP1b4/P3p2p/1n2Q1nP/3R1K2

#2

10 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bb5
      • 2.Qxb5#
    • 1...Bb7
      • 2.Qb5#
    • 1...Ba8
      • 2.Qb5#
    • 1...Sxd1
      • 2.Qa2#
    • 1...Sd3
      • 2.Qa2#
    • 1...Sc4
      • 2.Qf3#
    • 1...Se1
      • 2.Sf4#
    • 1...Sf4
      • 2.Sxf4#
    • 1...Sh4
      • 2.Sf4#
    • 1...d6
      • 2.Sc7#
  • Tries
    • 1.Rxe3?
      • threat
        • 2.Re5#
      • 1...Sxd1
        • 2.Qa2#
      • 1...Bb5
        • 2.Qxb5#
      • 1...Bb7
        • 2.Qb5#
      • 1...Ba8
        • 2.Qb5#
      • 1...Sd3
        • 2.Qa2#
      • 1...Sc4
        • 2.Qf3#
      • 1...d6
        • 2.Sc7#
      • 1...Sxe3+!
  • Keys
    • 1.Kg1!
      • 1...Sxd1
        • 2.Qa2#
      • 1...Bb5
        • 2.Qxb5#
      • 1...Bb7
        • 2.Qb5#
      • 1...Ba8
        • 2.Qb5#
      • 1...Sd3
        • 2.Qa2#
      • 1...Sc4
        • 2.Qf3#
      • 1...Se1
        • 2.Sf4#
      • 1...Sf4
        • 2.Sxf4#
      • 1...Sh4
        • 2.Sf4#
      • 1...d6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(h);N_GUARD,P_PINQ(C)::QAR2(C),XB(h)
    • B(h);N_GUARD::QAR2(C)
    • S(a);N_SPINB(f),OGATE,XR(A)::QAB(C)
    • S(a);N_SPINB(f),OGATE::QAB(C)
    • S(a);SBLOCK::QAB(C)
    • S(b);N_GUARD::S(G)
    • S(b);N_GUARD::S(G),XS(b)
    • P(i);SBLOCK::S(J)
  • Tries
    • Try
      • R(I);XP(c)
      • Threat
        • R1(I)
      • Vars
        • S(a);N_SPINB(f),OGATE,XR(A)::QAB(C)
        • B(h);N_GUARD,P_PINQ(C)::QAR2(C),XB(h)
        • B(h);N_GUARD::QAR2(C)
        • S(a);N_SPINB(f),OGATE::QAB(C)
        • S(a);SBLOCK::QAB(C)
        • P(i);SBLOCK::S(J)
      • Refutation
        • S(b);CHECK,XR(I)
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • S(a);N_SPINB(f),OGATE,XR(A)::QAB(C)
      • B(h);N_GUARD::QAR2(C),XB(h)
      • B(h);N_GUARD::QAR2(C)
      • S(a);N_SPINB(f),OGATE::QAB(C)
      • S(a);SBLOCK::QAB(C)
      • S(b);N_GUARD::S(G)
      • S(b);N_GUARD::S(G),XS(b)
      • P(i);SBLOCK::S(J)
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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).