MESON Chess Problem Database

Problem Display
PID: 335 (4N3/7R/4k3/1P4p1/p2Pn1P1/rr2Q2K/B4pPB/8 w - - 0 1)

Mansfield, Comins

The Observer, 1925

(First published on Sun Oct 18 1925)

4N3/7R/4k3/1P4p1/p2Pn1P1/rr2Q2K/B4pPB/8

#2

10 + 7

887 Mate in Two Moves 1931
3202 Complete Mansfield/I 1996
15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Bxb3+?
      • 1...axb3
        • 2.Qxe4#
      • 1...Rxb3!
    • 1.Qf3?
      • threat
        • 2.Sc7#
      • 1...Sg3
        • 2.Qc6#
        • 2.Qf7#
      • 1...Kd5!
  • Keys
    • 1.Qd3!
      • threat
        • 2.d5#
      • 1...Kd5
        • 2.Sc7#
      • 1...Sc3
        • 2.Qf5#
      • 1...Sg3
        • 2.Qc4#
      • 1...Sf6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);CHECK,N_SPINQ(D),XR(c)
      • Vars
        • P(d);XB(A)::QAR2(D),XS(e)
      • Refutation
        • R(b);P_PINQ(D),XB(A)
    • Try
      • Q(D);N_PINS(e)
      • Threat
        • S(J)
      • Refutation
        • K(g);P_SPINS(e),S_FLIGHT
  • Actual
    • Q(D);N_PINS(e)
    • Threat
      • P(F)
    • Vars
      • K(g);S_FLIGHT::S(J)
      • S(e);N_PINQ(D)::QAB1(D)
      • S(e);N_PINQ(D)::QAB(D)
      • S(e);SBLOCK::S(J)
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