MESON Chess Problem Database

Problem Display
PID: 55633 (5rq1/1n2RpPp/B1Rp3B/br1p3K/b2p3p/P2k1n2/Q1NN1p2/8 w - - 0 1)

Francey, James

Bristol Times and Mirror, 1930

(First published on Sat Aug 16 1930)

5rq1/1n2RpPp/B1Rp3B/br1p3K/b2p3p/P2k1n2/Q1NN1p2/8

#2

10 + 15

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc2
      • 2.Bxb5#
      • 2.Qxc2#
    • 1...Bb4
      • 2.Sxb4#
    • 1...Bb6
      • 2.Sb4#
    • 1...Bc7
      • 2.Sb4#
    • 1...Bd8
      • 2.Sb4#
  • Tries
    • 1.Qb3+?
      • 1...Bc3
        • 2.Sb4#
      • 1...Bxb3!
  • Keys
    • 1.Qxd5!
      • threat
        • 2.Qf5#
      • 1...Sxd2
        • 2.Re3#
      • 1...Se5
        • 2.Qe4#
      • 1...Sg5
        • 2.Qxd4#
      • 1...Sc5
        • 2.Qc4#
      • 1...f5
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • B(g);N_GUARD::S(B),XB(g)
    • B(g);N_GUARD::S(B)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • B(g);P_SPINB(g)::S(B)
      • Refutation
        • B(d);XQ(A)
  • Actual
    • Q(A);P_PINP(e),P_SPINQ(A),XP(i)
    • Threat
      • QAB(A)
    • Vars
      • S(c);SBLOCK,XS(C)::R1(I)
      • S(c);N_PINQ(A)::QAB1(A)
      • S(c);N_PINQ(A)::QAR1(A),XP(e)
      • S(k);N_PINQ(A)::QAB1(A)
      • P(l);N_PINQ(A)::QAR2(A),XS(c)
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