MESON Chess Problem Database

Problem Display
PID: 81177 (8/8/8/4p3/2P1rp2/2P2P2/1K1k2P1/3B1Q2 w - - 0 1)

Delort, J

Le Courrier des Echecs, 1973

8/8/8/4p3/2P1rp2/2P2P2/1K1k2P1/3B1Q2

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qe2#
    • 1...Re2
      • 2.Qxe2#
    • 1...Rxc4
      • 2.Qe2#
    • 1...Rd4
      • 2.Qe2#
  • Tries
    • 1.fxe4?
      • threat
        • 2.Qe2#
      • 1...Ke3
        • 2.Qe2#
      • 1...f3!
  • Keys
    • 1.Bc2!
      • 1...Ke3
        • 2.Qe1#
      • 1...Rxc4
        • 2.Qf2#
      • 1...Re1
        • 2.Qd3#
      • 1...Re2
        • 2.Qc1#
      • 1...Re3
        • 2.Qd1#
      • 1...Rd4
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 4
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(B)
    • R(b);N_GUARD::QAR1(B),XR(b)
    • R(b);N_GUARD,XP(G)::QAR1(B)
    • R(b);N_GUARD::QAR1(B)
  • Tries
    • Try
      • P(F);XR(b)
      • Threat
        • QAR1(B)
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • P(c);
  • Actual
    • B(A);
    • Vars
      • K(a);S_FLIGHT::QAR2(B)
      • R(b);N_GUARD,XP(G)::QAR2(B)
      • R(b);SBLOCK::QAR1(B)
      • R(b);SBLOCK::QAB1(B)
      • R(b);N_GUARD::QAR2(B)
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