MESON Chess Problem Database

Problem Display
PID: 193808 (8/2p3nB/Q6b/Kn3r2/N7/1P1k1N2/4R3/1qr1Rb2 w - - 0 1)

Mosely, Arthur James

1st HM., American Chess Bulletin, 1916

8/2p3nB/Q6b/Kn3r2/N7/1P1k1N2/4R3/1qr1Rb2

#2

8 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qxb5#
    • 1...Rxe1
      • 2.Qxb5#
    • 1...Bd2+
      • 2.Rxd2#
    • 1...Sh5
      • 2.Bxf5#
    • 1...Se6
      • 2.Bxf5#
    • 1...Se8
      • 2.Bxf5#
  • Tries
    • 1.Rd1+?
      • 1...Rxd1
        • 2.Qxb5#
      • 1...Bd2+
        • 2.Rdxd2#
      • 1...Kxe2!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qe4#
      • 1...Bd2+
        • 2.Rxd2#
      • 1...Sa3+
        • 2.Qd5#
      • 1...Sc3+
        • 2.Sc5#
      • 1...Sd4+
        • 2.Se5#
      • 1...Sd6+
        • 2.Qd5#
      • 1...Sa7+
        • 2.Qd5#
      • 1...Bxe2
        • 2.Qxe2#
      • 1...Sxe6
        • 2.Bxf5#
      • 1...Rc4
        • 2.Qxc4#
      • 1...Be3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::QAB(G),XS(e)
    • R(b);N_GUARD,XR(A)::QAB(G),XS(e)
    • B(g);CHECK,N_GUARD::R1(B),XB(g)
    • S(i);N_GUARD::B(H),XR(f)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • R(b);XR(A)::QAB(G),XS(e)
        • B(g);CHECK,N_GUARD,P_SPINB(g)::R1(A),XB(g)
      • Refutation
        • K(d);N_SPINR(f),S_FLIGHT,XR(B)
  • Actual
    • Q(G);N_PINS(e)
    • Threat
      • QAB1(G)
    • Vars
      • B(g);CHECK,N_GUARD::R1(B),XB(g)
      • S(e);CHECK,N_GUARD::QAR2(G)
      • S(e);CHECK,SBLOCK,S_CUTR(b)::S(E)
      • S(e);CHECK,SBLOCK::S(D)
      • B(c);OGATE,XR(B)::QAB1(G),XB(c)
      • S(i);N_GUARD,XQ(G)::B(H),XR(f)
      • R(b);N_GUARD::QAB1(G),XR(b)
      • B(g);N_GUARD::QAR1(G),XB(g)
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).