MESON Chess Problem Database

Problem Display
PID: 135605 (6Q1/4R3/3b4/n3pP1R/3Bk1p1/5NK1/q1P3P1/1B1n4 w - - 0 1)

Healey, Percy E

The Field, 1916

(First published on Sat Apr 29 1916)

6Q1/4R3/3b4/n3pP1R/3Bk1p1/5NK1/q1P3P1/1B1n4

#2

10 + 7

15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qb3
      • 2.cxb3#
    • 1...Qd5
      • 2.Qxg4#
      • 2.c3#
      • 2.c4#
    • 1...Qe6
      • 2.c4#
    • 1...Qf7
      • 2.c4#
    • 1...Qxg8
      • 2.c4#
    • 1...Qxc2
      • 2.Bxc2#
    • 1...Qa3
      • 2.c3#
    • 1...Ba3
      • 2.Rxe5#
    • 1...Bb4
      • 2.Rxe5#
    • 1...Bc5
      • 2.Rxe5#
  • Tries
    • 1.Bxa2?
      • threat
        • 2.Bd5#
        • 2.Qd5#
        • 2.Qxg4#
      • 1...gxf3
        • 2.Qd5#
        • 2.Qg4#
      • 1...Sf2
        • 2.Bd5#
        • 2.Qd5#
      • 1...Sc3
        • 2.Qxg4#
      • 1...Sb3
        • 2.Qa8#
      • 1...Sc4
        • 2.Qa8#
      • 1...Se3!
    • 1.Qd5+?
      • 1...Qxd5
        • 2.c3#
        • 2.c4#
      • 1...Kxd5!
    • 1.c3+?
      • 1...Qc2
        • 2.Bxc2#
      • 1...Qxb1!
    • 1.c4+?
      • 1...Qc2
        • 2.Bxc2#
      • 1...Qxb1!
  • Keys
    • 1.Ba7!
      • threat
        • 2.Sd2#
      • 1...Qxg8
        • 2.c4#
      • 1...Qxc2
        • 2.Bxc2#
      • 1...gxf3
        • 2.gxf3#
      • 1...Qe6
        • 2.c4#
      • 1...Qf7
        • 2.c4#
      • 1...Bc5
        • 2.Rxe5#
      • 1...Qb3
        • 2.cxb3#
      • 1...Qd5
        • 2.Qxg4#
      • 1...Qa3
        • 2.c3#
      • 1...Bb4
        • 2.Rxe5#
      • 1...Sb3
        • 2.Qa8#
      • 1...Sc4
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(b);OGATE,P_PINS(D)::B(A)+P(B),XQ(b)
    • Q(b);N_GUARD,N_SPINP(f)::B(A)+P(B)
    • Q(b);N_GUARD::B(A)+P(B)
    • Q(b);N_GUARD,XQ(J)::B(A)+P(B)
    • Q(b);OGATE,P_SPINQ(b),XP(B)::B(A),XQ(b)
    • Q(b);N_GUARD,P_PINS(D)::B(A)+P(B)
    • B(g);N_GUARD::R1(I),XP(f)
  • Tries
    • Try
      • B(A);XQ(b)
      • Threat
        • DUALS(3)
      • Vars
        • S(a);::QAR2(J),XP(d)
        • S(e);N_GUARD::QAB(J)
      • Refutation
        • S(a);
    • Try
      • Q(J);CHECK
      • Refutation
        • K(c);N_SPINP(f),S_FLIGHT,XQ(J)
    • Try
      • P(B);CHECK
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b)::B(A),XQ(b)
      • Refutation
        • Q(b);XB(A)
    • Try
      • P(B);CHECK
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b)::B(A),XQ(b)
      • Refutation
        • Q(b);XB(A)
  • Actual
    • B(F);
    • Threat
      • S(D)
    • Vars
      • Q(b);N_GUARD,XQ(J)::B(A)+P(B)
      • Q(b);OGATE,P_SPINQ(b),XP(B)::B(A),XQ(b)
      • P(d);OGATE,XS(D)::P(C),XP(d)
      • Q(b);N_GUARD,N_SPINP(f)::B(A)+P(B)
      • Q(b);N_GUARD::B(A)+P(B)
      • B(g);N_GUARD::R1(I),XP(f)
      • Q(b);OGATE,P_PINS(D)::B(A)+P(B),XQ(b)
      • Q(b);SBLOCK::QAR2(J),XP(d)
      • Q(b);N_GUARD,P_PINS(D)::B(A)+P(B)
      • S(e);N_GUARD,S_CUTQ(b)::QAB(J)
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).