MESON Chess Problem Database

Problem Display
PID: 31713 (1Bb1R3/2N5/n3n2p/8/5kPp/2P1p2P/4Q2P/4K2R w K - 0 1)

Rowland, Frideswide F (Mrs TB, nee Beechey)

Boys' Newspaper, 0000

1Bb1R3/2N5/n3n2p/8/5kPp/2P1p2P/4Q2P/4K2R

#2

10 + 7

3467 Chess Blossoms 1883

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Qxe3#
    • 1...Sc5
      • 2.Qxe3#
    • 1...Sg5
      • 2.Sd5#
      • 2.Sxa6#
      • 2.Qxe3#
    • 1...Sxc7
      • 2.Qxe3#
    • 1...Sg7
      • 2.Qxe3#
    • 1...Sd8
      • 2.Qxe3#
    • 1...Sf8
      • 2.Qxe3#
  • Tries
    • 1.Sd5+?
      • 1...Ke4
        • 2.Sf6#
      • 1...Kg5!
    • 1.Rxe6?
      • threat
        • 2.Qxe3#
      • 1...Kg5
        • 2.Qxe3#
      • 1...Bxe6!
    • 1.Qf1+?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kg5
        • 2.Qf5#
      • 1...Ke5!
    • 1.Qf3+?
      • 1...Ke5
        • 2.Sxa6#
      • 1...Kg5
        • 2.Qf5#
      • 1...Kxf3!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qf5#
      • 1...Kf3
        • 2.0-0#
      • 1...Ke5
        • 2.Qd4#
      • 1...Kg5
        • 2.Qf5#
      • 1...Sexc7
        • 2.Qxe3#
      • 1...Sd4
        • 2.Qxe3#
      • 1...Sec5
        • 2.Qxe3#
      • 1...Sg5
        • 2.Qxe3#
      • 1...Sg7
        • 2.Qxe3#
      • 1...Sd8
        • 2.Qxe3#
      • 1...Sf8
        • 2.Qxe3#
      • 1...e2
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(e);::QAB1(C),XP(a)
    • S(e);P_SPINS(e),XS(H)::QAB1(C),XP(a)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINP(a),P_SPINS(e)::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(J);XS(e)
      • Threat
        • QAB1(C),XP(a)
      • Vars
        • K(b);S_FLIGHT::QAB(C),XP(a)
      • Refutation
        • B(g);XR(J)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT,P_SPINS(e)::QAB1(C)
        • K(b);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);P_SPINS(e),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P_SPINS(e),S_FLIGHT::B(I)+S(H),XS(d)
        • K(b);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • K(b);P-FLIGHT,P_SPINP(a)::0-0
      • K(b);P_SPINS(e),S_FLIGHT::QAB1(C)
      • K(b);S_FLIGHT::QAR1(C)
      • S(e);P_SPINS(e),XS(H)::QAB1(C),XP(a)
      • S(e);::QAB1(C),XP(a)
      • S(e);SBLOCK::QAB1(C),XP(a)
      • P(a);::B(I)+S(H),DCHECK,XS(e)
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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).