MESON Chess Problem Database

Problem Display
PID: 206651 (Q2nBB2/1n3p2/5p2/b2k1N1R/3Pp3/4R3/K2N4/8 w - - 0 1)

Findeisen, Walter

Arbeiter Schachzeitung, 1925

Q2nBB2/1n3p2/5p2/b2k1N1R/3Pp3/4R3/K2N4/8

#2

9 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Sg7#
    • 1...Sc6
      • 2.Bxf7#
    • 1...Se6
      • 2.Qxb7#
  • Tries
    • 1.Ka1?
      • 1...Ke6
        • 2.Sg7#
      • 1...Bxd2
        • 2.Qa2#
      • 1...Bb4
        • 2.Qa2#
      • 1...Bb6
        • 2.Qa2#
      • 1...Bc7
        • 2.Qa2#
      • 1...Sc6
        • 2.Bxf7#
      • 1...Se6
        • 2.Qxb7#
      • 1...Bc3+!
    • 1.Kb2?
      • 1...Ke6
        • 2.Sg7#
      • 1...Bxd2
        • 2.Qa2#
      • 1...Bb4
        • 2.Qa2#
      • 1...Bb6
        • 2.Qa2#
      • 1...Bc7
        • 2.Qa2#
      • 1...Sc6
        • 2.Bxf7#
      • 1...Se6
        • 2.Qxb7#
      • 1...Bc3+!
    • 1.Qxb7+?
      • 1...Ke6
        • 2.Sg7#
        • 2.Bd7#
        • 2.Rxe4#
        • 2.Qxe4#
        • 2.Qb3#
        • 2.Qd7#
      • 1...Sc6
        • 2.Bxf7#
        • 2.Qxc6#
        • 2.Qb3#
        • 2.Qd7#
        • 2.Qxf7#
      • 1...Sxb7!
    • 1.Qa6?
      • threat
        • 2.Qc4#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Bxd2!
  • Keys
    • 1.Kb1!
      • 1...Ke6
        • 2.Sg7#
      • 1...Bxd2
        • 2.Qa2#
      • 1...Bc3
        • 2.Qa2#
      • 1...Bb4
        • 2.Qa2#
      • 1...Bb6
        • 2.Qa2#
      • 1...Bc7
        • 2.Qa2#
      • 1...Sc6
        • 2.Bxf7#
      • 1...Se6
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINS(e),P_SPINP(a),S_FLIGHT::S(E)
    • S(g);N_GUARD,N_SPINS(e),SBLOCK::B(H),XP(f)
    • S(g);N_GUARD,SBLOCK::QAB(G),XS(e)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(c);N_SPINS(e),P_SPINP(a),S_FLIGHT::S(E)
        • B(b);OGATE,XS(B)::QAB(G)
        • B(b);OGATE::QAB(G)
        • S(g);N_GUARD,N_SPINS(e),SBLOCK::B(H),XP(f)
        • S(g);N_GUARD,SBLOCK::QAB(G),XS(e)
      • Refutation
        • B(b);CHECK
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(c);N_SPINS(e),P_SPINP(a),S_FLIGHT::S(E)
        • B(b);OGATE,XS(B)::QAB(G)
        • B(b);OGATE::QAB(G)
        • S(g);N_GUARD,N_SPINS(e),SBLOCK::B(H),XP(f)
        • S(g);N_GUARD,SBLOCK::QAB(G),XS(e)
      • Refutation
        • B(b);CHECK
    • Try
      • Q(G);CHECK,XS(e)
      • Refutation
        • S(g);XQ(G)
    • Try
      • Q(G);N_PINS(e)
      • Threat
        • QAB1(G)
      • Vars
        • S(e);N_GUARD::QAR1(G),XS(e)
      • Refutation
        • B(b);XS(B)
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(c);N_SPINS(e),P_SPINP(a),S_FLIGHT::S(E)
      • B(b);OGATE,XS(B)::QAB(G)
      • B(b);OGATE::QAB(G)
      • S(g);N_GUARD,N_SPINS(e),SBLOCK::B(H),XP(f)
      • S(g);N_GUARD,SBLOCK::QAB(G),XS(e)
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).