MESON Chess Problem Database

Problem Display
PID: 52387 (8/3RPp2/1p1Bp3/b4pN1/n2k4/1P3Q2/P2N4/3RK3 w - - 0 1)

Kish, Alexander

Christian Science Monitor, 1935

(First published on Tue Jul 23 1935)

8/3RPp2/1p1Bp3/b4pN1/n2k4/1P3Q2/P2N4/3RK3

#2

10 + 7

5064 100 Years of the American Two-move Chess Problem 1962

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd2+
      • 2.Rxd2#
    • 1...e5
      • 2.Ba3#
      • 2.Bb4#
    • 1...f6
      • 2.Sxe6#
  • Tries
    • 1.Sxf7?
      • threat
        • 2.Ba3#
        • 2.Bb4#
      • 1...Bxd2+
        • 2.Rxd2#
      • 1...Bb4
        • 2.Bxb4#
      • 1...Sc5
        • 2.Be5#
      • 1...Sc3!
    • 1.Bc5+?
      • 1...Ke5
        • 2.Bd4#
      • 1...Kxc5!
    • 1.Qe4+?
      • 1...Kc3
        • 2.Be5#
      • 1...fxe4!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Bb4#
      • 1...Bxd2+
        • 2.Qxd2#
      • 1...Kc3
        • 2.Sb1#
      • 1...Kd5
        • 2.Qc4#
      • 1...Bb4
        • 2.Bxb4#
      • 1...Sc3
        • 2.Sdf3#
      • 1...Sc5
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(c);CHECK,OGATE,P_SPINB(c),XS(D)::R(A),XB(c)
    • P(g);N_GUARD::S(G),XP(f)
  • Tries
    • Try
      • S(G);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • B(c);CHECK,OGATE,P_SPINB(c),XS(D)::R(A),XB(c)
        • B(c);::R(I)+B(H),XB(c)
        • S(a);SBLOCK::R(I)+B(H),DCHECK
      • Refutation
        • S(a);N_PINS(D)
    • Try
      • B(H);CHECK
      • Vars
        • K(b);S_FLIGHT::B(H)
      • Refutation
        • K(b);S_FLIGHT,XB(H)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);N_PINS(D),S_FLIGHT::B(H)
      • Refutation
        • P(d);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • R(I)+B(H)
    • Vars
      • B(c);CHECK,OGATE,P_SPINB(c),XS(D)::QAR2(F),XB(c)
      • K(b);N_PINS(D),S_FLIGHT::S(D)
      • K(b);P-FLIGHT::QAB1(F)
      • B(c);::R(I)+B(H),XB(c)
      • S(a);N_PINS(D),SBLOCK::R(A)+S(D),DCHECK
      • S(a);SBLOCK::R(I)+B(H),DCHECK
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).