MESON Chess Problem Database

Problem Display
PID: 57212 (2n1N3/1N3pr1/5P2/4kB1R/2b1p1P1/K1P2rP1/1Q3B2/3R4 w - - 0 1)

Tucker, HJ

10th Highly Comm., Brisbane Courier, 1918

2n1N3/1N3pr1/5P2/4kB1R/2b1p1P1/K1P2rP1/1Q3B2/3R4

#2

12 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3+
      • 2.Qxc3#
    • 1...Rxg3
      • 2.Bxg3#
    • 1...Bd3
      • 2.c4#
    • 1...Bb5
      • 2.Qxb5#
    • 1...Bd5
      • 2.Bd4#
  • Tries
    • 1.Bg6+?
      • 1...Ke6
        • 2.Sc5#
        • 2.Sd8#
      • 1...Rf5!
    • 1.Bd7+?
      • 1...Rf5
        • 2.Rxf5#
      • 1...Rg5!
    • 1.Bxc8+?
      • 1...Rf5
        • 2.Rxf5#
      • 1...Rg5!
    • 1.Rd5+?
      • 1...Bxd5
        • 2.Bd4#
      • 1...Kxd5!
    • 1.Qb5+?
      • 1...Bd5
        • 2.Bd4#
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Bxb5!
  • Keys
    • 1.Sd8!
      • threat
        • 2.Sc6#
      • 1...Rxc3+
        • 2.Qxc3#
      • 1...Rxg3
        • 2.Bxg3#
      • 1...Rxf5
        • 2.Rxf5#
      • 1...Rd3
        • 2.Bg6#
      • 1...Bd3
        • 2.c4#
      • 1...Bb5
        • 2.Qxb5#
      • 1...Bd5
        • 2.Bd4#
      • 1...Sa7
        • 2.Qb8#
      • 1...Se7
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(a);CHECK,OGATE,P_SPINR(a),XP(E)::QAB(B),XR(a)
    • R(a);OGATE,XP(F)::B(C),XR(a)
    • B(b);N_PINP(E)::QAB(B)+P(E)
    • B(b);N_GUARD::QAR(B),XB(b)
    • B(b);SBLOCK::B(C)
  • Tries
    • Try
      • B(H);CHECK
      • Refutation
        • R(a);N_PINP(E),P_SPINR(a)
    • Try
      • B(H);CHECK
      • Vars
        • R(a);N_GUARD,N_PINP(E),P_SPINR(a)::R1(I),XR(a)
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • B(H);CHECK,XS(g)
      • Vars
        • R(a);N_GUARD,N_PINP(E),P_SPINR(a)::R1(I),XR(a)
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • R(A);CHECK
      • Vars
        • B(b);SBLOCK,XR(A)::B(C)
      • Refutation
        • K(d);P-FLIGHT,XR(A)
    • Try
      • Q(B);CHECK
      • Refutation
        • B(b);XQ(B)
  • Actual
    • S(K);
    • Threat
      • S(K)
    • Vars
      • R(a);CHECK,OGATE,P_SPINR(a),XP(E)::QAB(B),XR(a)
      • R(a);OGATE,XP(F)::B(C),XR(a)
      • R(a);N_PINP(E),OGATE,P_SPINR(a),XB(H)::R1(I),XR(a)
      • R(a);N_GUARD::R(I)+B(H)
      • B(b);N_PINP(E)::QAB(B)+P(E)
      • B(b);N_GUARD::QAR(B),XB(b)
      • B(b);SBLOCK::B(C)
      • S(g);N_GUARD::QAB(B)
HTML5 logo

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).