MESON Chess Problem Database

Problem Display
PID: 208743 (2R5/6q1/5b2/6N1/1N1k4/1rrb2K1/3p1P2/B2Q4 w - - 0 1)

Mclaughlin, WD

Dubuque Chess Journal, 1875

2R5/6q1/5b2/6N1/1N1k4/1rrb2K1/3p1P2/B2Q4

#2

7 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Bxc3#
  • Keys
    • 1.Qg4+!
      • 1...Ke5
        • 2.Qf4#
      • 1...Be4+
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(b);N_GUARD::B(A),XR(c)
  • Actual
    • Q(B);CHECK,N_SPINS(F)
    • Vars
      • K(e);S_FLIGHT::QAB1(B)
      • B(d);CHECK,P_SPINB(d)::S(F)
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