MESON Chess Problem Database

Problem Display
PID: 151735 (2K2b2/2PRpr1b/6B1/6n1/3Bq3/5Q1r/p3N3/Nk6 w - - 0 1)

Harley, Brian

Chess Amateur (The), 1915

2K2b2/2PRpr1b/6B1/6n1/3Bq3/5Q1r/p3N3/Nk6

#2

8 + 9

15290 Harley Scrapbook 2014
56 The Problemist 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Qb7#
    • 1...Qf5
      • 2.Qf1#
    • 1...Rh1
      • 2.Qb3#
    • 1...Rh2
      • 2.Qb3#
    • 1...Rh4
      • 2.Qb3#
    • 1...Rh5
      • 2.Qb3#
    • 1...Rh6
      • 2.Qb3#
    • 1...Rg7
      • 2.Qf1#
  • Tries
    • 1.Bc3?
      • threat
        • 2.Rd1#
      • 1...Qd3
        • 2.Qb7#
      • 1...Qf5
        • 2.Qb7#
        • 2.Qf1#
      • 1...Rh1!
    • 1.Qh1+?
      • 1...Rf1
        • 2.Qxf1#
      • 1...Rxh1!
    • 1.Qxe4+?
      • 1...Rd3
        • 2.Qxd3#
        • 2.Qb7#
      • 1...Sxe4!
    • 1.Qc3?
      • threat
        • 2.Qe1#
        • 2.Qb2#
        • 2.Qc1#
      • 1...Qc2
        • 2.Qe1#
        • 2.Qb2#
        • 2.Qxc2#
      • 1...Rh1
        • 2.Qb2#
        • 2.Qb4#
        • 2.Qb3#
      • 1...Rd3
        • 2.Qb2#
        • 2.Qc1#
        • 2.Qc2#
      • 1...Rf1
        • 2.Qb2#
      • 1...Sf3
        • 2.Qb2#
        • 2.Qb4#
        • 2.Qc1#
        • 2.Qb3#
      • 1...Rxc3!
  • Keys
    • 1.Be5!
      • threat
        • 2.Rd1#
      • 1...Qd3
        • 2.Qb7#
      • 1...Qf5
        • 2.Qf1#
      • 1...Rh1
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • Q(d);OGATE::QAR(C)
    • Q(d);P_PINR(G),S_CUTR(g)::QAR(C)
    • R(c);N_GUARD::QAR2(C)
    • R(g);N_GUARD::QAR(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • R(G)
      • Vars
        • Q(d);OGATE::QAR(C)
      • Refutation
        • R(c);
    • Try
      • Q(C);CHECK
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::QAR(C),XR(g)
      • Refutation
        • R(c);XQ(C)
    • Try
      • Q(C);CHECK,XQ(d)
      • Refutation
        • S(e);P_SPINS(e),XQ(C)
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • R(g);::QAR1(C)
      • Refutation
        • R(c);P_PINP(F),XQ(C)
  • Actual
    • B(D);
    • Threat
      • R(G)
    • Vars
      • Q(d);OGATE::QAR(C)
      • Q(d);P_PINR(G),S_CUTR(g)::QAR(C)
      • R(c);N_GUARD::QAR2(C)
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