MESON Chess Problem Database

Problem Display
PID: 160590 (2N3B1/r6b/5Nr1/b3k2n/1pp3P1/6P1/7K/2B2Q2 w - - 0 1)

Mosely, Arthur James

Hampstead and Highgate Express, 1913

(First published on Sat May 24 1913)

2N3B1/r6b/5Nr1/b3k2n/1pp3P1/6P1/7K/2B2Q2

#2

8 + 8

14986 White-Hume Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sxg3
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sxf6
      • 2.Qf4#
    • 1...Sg7
      • 2.Qf4#
  • Tries
    • 1.Bf4+?
      • 1...Kd4
        • 2.Qxc4#
      • 1...Sxf4
        • 2.Qxf4#
      • 1...Kxf6!
    • 1.Qe2+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kxf6!
    • 1.Qe1+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kxf6!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qd6#
      • 1...Kxf6
        • 2.Qd4#
      • 1...Rxg4
        • 2.Sxg4#
      • 1...Rxf6
        • 2.Qd5#
      • 1...Sxf6
        • 2.Bf4#
      • 1...cxd3
        • 2.Bb2#
      • 1...Ra6
        • 2.Sd7#
      • 1...Rd7
        • 2.Sxd7#
      • 1...Bc7
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 3
  • Sets
    • S(e);N_GUARD,XP(D)::QAB1(B)
    • S(e);N_GUARD::QAB1(B),XS(e)
    • S(e);N_GUARD,XS(F)::QAB1(B)
    • S(e);N_GUARD::QAB1(B)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(B),XP(b)
        • S(e);OGATE,XB(A)::QAB1(B),XS(e)
      • Refutation
        • K(d);S_FLIGHT,XS(F)
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(B)
      • Refutation
        • K(d);S_FLIGHT,XS(F)
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(B)
      • Refutation
        • K(d);S_FLIGHT,XS(F)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(d);S_FLIGHT,XS(F)::QAB(B)
      • R(f);XP(E)::S(F),XR(f)
      • R(f);SBLOCK,XS(F)::QAR1(B)
      • S(e);N_GUARD,SBLOCK,XS(F)::B(A)
      • P(b);N_GUARD,XQ(B)::B(A)
      • R(g);N_GUARD::S(F)
      • R(g);N_GUARD::S(F),XR(g)
      • B(c);S_CUTR(g)::S(F)
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