MESON Chess Problem Database

Problem Display
PID: 68455 (B7/3p3r/nP1N4/P1kP3R/K1N5/ppB1p3/3q4/2R3Qb w - - 0 1)

Tuhan-Baranowski, Leon

1st Prize, British Chess Magazine, 1933/I

B7/3p3r/nP1N4/P1kP3R/K1N5/ppB1p3/3q4/2R3Qb

#2

11 + 9

23 Die Schwalbe 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Qxe3#
    • 1...Qb2
      • 2.Qxe3#
    • 1...Qc2
      • 2.Qxe3#
    • 1...Qg2
      • 2.Qxe3#
    • 1...Qh2
      • 2.Qxe3#
    • 1...Qxd5
      • 2.Qxe3#
  • Tries
    • 1.Sxd2?
      • threat
        • 2.Sb7#
        • 2.Be5#
      • 1...Rxh5
        • 2.Be5#
      • 1...Bxd5
        • 2.S2e4#
        • 2.S6e4#
        • 2.Rxd5#
      • 1...Be4
        • 2.S2xe4#
        • 2.S6xe4#
        • 2.Sb7#
      • 1...Sb4
        • 2.Sb7#
      • 1...b2
        • 2.Sb7#
      • 1...Kxd6!
    • 1.Bxd2?
      • threat
        • 2.Bxe3#
        • 2.Qxe3#
      • 1...Kd4
        • 2.Qxe3#
      • 1...Re7!
    • 1.Bd4+?
      • 1...Qxd4
        • 2.Sb7#
      • 1...Kxd4!
    • 1.Qxe3+?
      • 1...Qd4
        • 2.Bxd4#
        • 2.Qxd4#
      • 1...Qxe3!
  • Keys
    • 1.Sxe3!
      • threat
        • 2.Sb7#
      • 1...Qd4+
        • 2.Bb4#
      • 1...Kxd6
        • 2.Sf5#
      • 1...Qxc3
        • 2.Sef5#
      • 1...Qxe3
        • 2.Be5#
      • 1...Qxd5
        • 2.Sec4#
      • 1...Bxd5
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • Q(b);N_GUARD::QAB(B),XP(e)
    • Q(b);N_GUARD,P_SPINQ(b),XP(G)::QAB(B),XP(e)
  • Tries
    • Try
      • S(E);XQ(b)
      • Threat
        • DUALS(2)
      • Vars
        • R(i);XR(H)::R(A)+B(C)
        • S(g);::S(J)
        • P(d);::S(J)
      • Refutation
        • K(f);N_SPINP(e),S_FLIGHT,XS(J)
    • Try
      • B(C);XQ(b)
      • Threat
        • DUALS(2)
      • Vars
        • K(f);S_FLIGHT::QAB1(B),XP(e)
      • Refutation
        • R(i);
    • Try
      • B(C);CHECK,N_PINP(e)
      • Vars
        • Q(b);P_PINS(E),SBLOCK,XB(C)::S(J)
      • Refutation
        • K(f);P_SPINP(e),S_FLIGHT,XB(C)
    • Try
      • Q(B);CHECK,XP(e)
      • Refutation
        • Q(b);XQ(B)
  • Actual
    • S(E);XP(e)
    • Threat
      • S(J)
    • Vars
      • Q(b);CHECK,SBLOCK::R(A)+B(C),DCHECK
      • K(f);S_FLIGHT,XS(J)::S(E)
      • Q(b);N_GUARD,P_SPINQ(b),XB(C)::QAB(B)+S(E)
      • Q(b);N_GUARD,P_SPINQ(b),XS(E)::R(A)+B(C)
      • Q(b);N_GUARD,P_SPINQ(b),XP(G)::QAB(B)+S(E)
      • B(a);N_GUARD,P_SPINB(a),XP(G)::S(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).