Problem Display
PID: 31385 (1K1N2Q1/8/2pP1P2/2p1kb1R/8/B4P2/2N1P3/8 w - - 0 1)

Winter-Wood, Edward John

Irish Sportsman, 1884

(First published on Sat Apr 5 1884)

1K1N2Q1/8/2pP1P2/2p1kb1R/8/B4P2/2N1P3/8

#2

10 + 4


3392 Chess Souvenirs 1886
3713 Snap 2007
15254 EJWW Scrapbook 2011
15351 SCPF/BCPS Black Books 2016

SOLUTION


  • SOUND
  • Sets
    • 1...Kxf6
      • 2.Bb2#
  • Tries
    • 1.Sxc6+?
      • 1...Kf4
        • 2.Bc1#
        • 2.Qg5#
      • 1...Kxf6
        • 2.Bb2#
      • 1...Kxd6!
    • 1.Bc1?
      • threat
        • 2.Qe6#
      • 1...Kxf6
        • 2.Bb2#
      • 1...Kxd6!
    • 1.Bb2+?
      • 1...Kf4
        • 2.Qg5#
      • 1...Kxd6!
    • 1.Bxc5?
      • 1...Kxf6
        • 2.Bd4#
      • 1...Kf4!
    • 1.Rxf5+?
      • 1...Kxd6
        • 2.Qe6#
      • 1...Kxf5!
    • 1.Qc4?
      • 1...Kxd6
        • 2.Qd4#
      • 1...Kxf6!
    • 1.Qg3+?
      • 1...Kxf6
        • 2.Bb2#
      • 1...Kd5!
    • 1.Qg4?
      • 1...Kxd6
        • 2.Qd4#
      • 1...Kxf6
        • 2.Bb2#
        • 2.Rxf5#
      • 1...c4
        • 2.Rxf5#
        • 2.Qxf5#
        • 2.Qd4#
      • 1...Kd5!
    • 1.e3?
      • threat
        • 2.Qe6#
      • 1...Kxf6
        • 2.Bb2#
      • 1...Kxd6!
    • 1.e4?
      • 1...Kf4
        • 2.Rxf5#
      • 1...Kxf6
        • 2.Bb2#
        • 2.Rxf5#
      • 1...c4
        • 2.Rxf5#
      • 1...Kxd6!
  • Keys
    • 1.Qg1!
      • 1...Kf4
        • 2.Qh2#
      • 1...Kd5
        • 2.Qxc5#
      • 1...Kxd6
        • 2.Qd4#
      • 1...Kxf6
        • 2.Bb2#
      • 1...c4
        • 2.Qd4#

This anticipates 1149(1988)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINB(c),S_FLIGHT,XP(G)::B(C)
  • Tries
    • Try
      • S(I);CHECK,XP(d)
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT,XP(G)::B(C)
      • Refutation
        • K(b);N_SPINB(c),P_SPINP(a),S_FLIGHT,XP(F)
    • Try
      • B(C);
      • Threat
        • QAR1(J)
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT,XP(G)::B(C)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(F)
    • Try
      • B(C);CHECK
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT::QAB1(J)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(F)
    • Try
      • B(C);XP(a)
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT,XP(G)::B(C)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT
    • Try
      • R(E);CHECK,XB(c)
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT,XP(F)::QAR1(J)
      • Refutation
        • K(b);P-FLIGHT,XR(E)
    • Try
      • Q(J);
      • Vars
        • K(b);N_SPINB(c),P_SPINP(a),S_FLIGHT,XP(F)::QAR2(J)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(G)
    • Try
      • Q(J);CHECK
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT,XP(G)::B(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(b);N_SPINB(c),P_SPINP(a),S_FLIGHT,XP(F)::QAR2(J)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(B);
      • Threat
        • QAR1(J)
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT,XP(G)::B(C)
      • Refutation
        • K(b);N_SPINB(c),P_SPINP(a),S_FLIGHT,XP(F)
    • Try
      • P(B);
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT::R1(E),XB(c)
        • P(a);::R1(E),XB(c)
      • Refutation
        • K(b);N_SPINB(c),P_SPINP(a),S_FLIGHT,XP(F)
  • Actual
    • Q(J);
    • Vars
      • K(b);N_SPINB(c),S_FLIGHT::QAB(J)
      • K(b);P-FLIGHT::QAR1(J),XP(a)
      • K(b);N_SPINB(c),P_SPINP(a),S_FLIGHT,XP(F)::QAR2(J)
      • K(b);N_SPINB(c),S_FLIGHT,XP(G)::B(C)
      • P(a);N_GUARD::QAB1(J)


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).