MESON Chess Problem Database

Problem Display
PID: 63035 (4R3/8/3p4/1q6/1P2BB2/pPN2p2/K2P1p2/1N2krb1 w - - 0 1)

Barthelemy, Edmond

La Strategie, 1936

4R3/8/3p4/1q6/1P2BB2/pPN2p2/K2P1p2/1N2krb1

#2

9 + 8

371 The Chess Review 1937

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Bxd3#
    • 1...Qa4
      • 2.Bc6#
    • 1...Qa6
      • 2.Bd3#
    • 1...Qc6
      • 2.Bxc6#
    • 1...Qa5
      • 2.Bd5#
    • 1...Qd5
      • 2.Bxd5#
    • 1...Qf5
      • 2.Bxf5#
    • 1...Qb7
      • 2.Bxb7#
  • Tries
    • 1.Sxb5?
      • threat
        • 2.Bc2#
        • 2.Bxf3#
      • 1...Ke2
        • 2.Bc2#
      • 1...Kd1!
    • 1.d3?
      • threat
        • 2.Bd2#
      • 1...Qxd3
        • 2.Bxd3#
      • 1...Qg5!
  • Keys
    • 1.Sxa3!
      • threat
        • 2.Sc2#
      • 1...Qd3
        • 2.Bxd3#
      • 1...Qa4
        • 2.Bc6#
      • 1...Qa6
        • 2.Bd3#
      • 1...Qa5
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • Q(g);N_GUARD::R(I)+B(G),XQ(g)
    • Q(g);N_GUARD::R(I)+B(G)
    • Q(g);N_GUARD,P_PINP(D)::R(I)+B(G),XQ(g)
  • Tries
    • Try
      • S(E);XQ(g)
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::R(I)+B(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(C);
      • Threat
        • B(H)
      • Vars
        • Q(g);OGATE,XP(C)::R(I)+B(G),XQ(g)
      • Refutation
        • Q(g);
  • Actual
    • S(A);XP(e)
    • Threat
      • S(A)
    • Vars
      • Q(g);N_GUARD::R(I)+B(G),XQ(g)
      • Q(g);N_GUARD,P_PINS(A)::R(I)+B(G)
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