MESON Chess Problem Database

Problem Display
PID: 152758 (8/8/8/4B3/p7/rp2k2p/pR1NbN1P/K3QBn1 w - - 0 1)

Promislo, Charles

2nd Prize, Good Companions (December), 1915

8/8/8/4B3/p7/rp2k2p/pR1NbN1P/K3QBn1

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Sc4#
      • 2.Qxe2#
  • Tries
    • 1.Sf3?
      • 1...Sxf3
        • 2.Rxe2#
        • 2.Qxe2#
      • 1...Kxf3!
    • 1.Sde4?
      • 1...Sf3
        • 2.Rxe2#
        • 2.Qxe2#
      • 1...Kf3!
    • 1.Sh1?
      • 1...Sf3
        • 2.Qxe2#
      • 1...Kd3!
    • 1.Sd3?
      • 1...Sf3
        • 2.Qxe2#
      • 1...Kxd3!
    • 1.Sxh3?
      • 1...Sxh3
        • 2.Qxe2#
      • 1...Sf3
        • 2.Qxe2#
      • 1...Kd3!
    • 1.Sfe4?
      • 1...Sf3
        • 2.Qxe2#
      • 1...Kd3!
    • 1.Bxh3?
      • 1...Sf3
        • 2.Sf1#
        • 2.Sc4#
      • 1...Sxh3!
  • Keys
    • 1.Qd1!
      • 1...Kxf2
        • 2.Bd4#
      • 1...Bxd1
        • 2.Sxd1#
      • 1...Bxf1
        • 2.Sxf1#
      • 1...Sf3
        • 2.Qxe2#
      • 1...Bd3
        • 2.Sg4#
      • 1...Bf3
        • 2.Sc4#
      • 1...Bc4
        • 2.Sxc4#
        • 2.Sg4#
      • 1...Bg4
        • 2.Sc4#
        • 2.Sxg4#
      • 1...Bb5
        • 2.Sg4#
      • 1...Bh5
        • 2.Sc4#
      • 1...Ba6
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Refutation
        • K(f);N_SPINB(c),P-FLIGHT,XS(E)
    • Try
      • S(E);
      • Refutation
        • K(f);N_SPINB(c),P-FLIGHT
    • Try
      • S(F);
      • Vars
        • S(a);N_GUARD::QAR1(B),XB(c)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • S(F);
      • Vars
        • S(a);N_GUARD::QAR1(B),XB(c)
      • Refutation
        • K(f);P-FLIGHT,XS(F)
    • Try
      • S(F);XP(g)
      • Vars
        • S(a);N_GUARD,XS(F)::QAR1(B),XB(c)
        • S(a);N_GUARD::QAR1(B),XB(c)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • S(F);
      • Vars
        • S(a);N_GUARD::QAR1(B),XB(c)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • B(C);XP(g)
      • Refutation
        • S(a);XB(C)
  • Actual
    • Q(B);N_PINB(c)
    • Vars
      • K(f);S_FLIGHT,XS(F)::B(H)
      • B(c);XQ(B)::S(F),XB(c)
      • B(c);XB(C)::S(E),XB(c)
      • S(a);N_GUARD::QAR1(B),XB(c)
      • B(c);N_GUARD::S(F)
      • B(c);N_GUARD::S(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).