MESON Chess Problem Database

Problem Display
PID: 7029 (3qb3/2N1R3/Bpp2Q1K/4P3/RN2kB2/2p2p2/8/2rr3n w - - 0 1)

Mansfield, Comins

Skakbladet, 1935

3qb3/2N1R3/Bpp2Q1K/4P3/RN2kB2/2p2p2/8/2rr3n

#2

9 + 10

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sd3#
    • 1...Qd2
      • 2.Sd3#
    • 1...Qd3
      • 2.Sxd3#
    • 1...Qd6
      • 2.exd6#
    • 1...Qa8
      • 2.Sd3#
    • 1...Qb8
      • 2.Sd3#
    • 1...Qc8
      • 2.Sd3#
    • 1...Re1
      • 2.Sbd5#
    • 1...Rf1
      • 2.Sbd5#
    • 1...Rg1
      • 2.Sbd5#
    • 1...Rd5
      • 2.Sbxd5#
    • 1...Rd6
      • 2.Sbd5#
    • 1...Rd7
      • 2.Sbd5#
    • 1...Bd7
      • 2.Sd3#
  • Tries
    • 1.Be3?
      • threat
        • 2.Qf4#
      • 1...Qd6
        • 2.exd6#
      • 1...Rd6
        • 2.Sbd5#
      • 1...Kxe3!
    • 1.Qf5+?
      • 1...Kd4
        • 2.Sd3#
        • 2.Se6#
      • 1...Kxf5!
    • 1.Qg6+?
      • 1...Kd4
        • 2.Sd3#
        • 2.Se6#
      • 1...Kxf4
        • 2.Sbd5#
      • 1...Bxg6!
  • Keys
    • 1.Bg5!
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Sd3#
      • 1...Qd2
        • 2.Sd3#
      • 1...Qd6
        • 2.exd6#
      • 1...Rd6
        • 2.Sbd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 10
  • Sets
    • K(f);P-FLIGHT::R(A)+S(B)
    • Q(i);N_GUARD,P_PINB(C)::R(A)+S(B)
    • Q(i);N_GUARD::R(A)+S(B),XQ(i)
    • Q(i);OGATE,P_PINQ(F)::R(I)+P(D),XQ(i)
    • Q(i);N_GUARD::R(A)+S(B)
    • R(b);N_GUARD::R(A)+S(B)
    • R(b);N_GUARD::R(A)+S(B),XR(b)
    • R(b);N_GUARD,P_PINQ(F)::R(A)+S(B)
    • B(j);S_CUTQ(i)::R(A)+S(B)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR1(F)
      • Vars
        • Q(i);OGATE,P_PINQ(F)::R(I)+P(D),XQ(i)
        • R(b);N_GUARD,P_PINQ(F)::R(A)+S(B)
      • Refutation
        • K(f);P-FLIGHT,XB(C)
    • Try
      • Q(F);CHECK
      • Refutation
        • K(f);S_FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(f);P-FLIGHT,XB(C)::R(A)+S(B),DCHECK
      • Refutation
        • B(j);XQ(F)
  • Actual
    • B(C);
    • Threat
      • QAR1(F)
    • Vars
      • K(f);P-FLIGHT::R(A)+S(B)
      • Q(i);N_GUARD,P_PINB(C)::R(A)+S(B)
      • Q(i);OGATE,P_PINQ(F)::R(I)+P(D),XQ(i)
      • R(b);N_GUARD,P_PINQ(F)::R(A)+S(B)
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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).