MESON Chess Problem Database

Problem Display
PID: 42381 (3B4/6pr/1R5p/p1K2k2/2ppp1N1/6PP/1Q2bb1r/5R2 w - - 0 1)

Barclay, F

Mansfield, Comins

Die Schwalbe, 1968

3B4/6pr/1R5p/p1K2k2/2ppp1N1/6PP/1Q2bb1r/5R2

#2

8 + 11

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...d3+
      • 2.Se3#
    • 1...g5
      • 2.Rf6#
  • Tries
    • 1.Se3+?
      • 1...Ke5
        • 2.Bc7#
        • 2.Qxd4#
      • 1...dxe3!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qd7#
      • 1...d3+
        • 2.Kxc4#
      • 1...Bxg4
        • 2.Kxc4#
      • 1...e3
        • 2.Kxd4#
      • 1...g5
        • 2.Rf6#
      • 1...g6
        • 2.Kd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(e);CHECK,N_GUARD::S(E)
    • P(j);N_GUARD,SBLOCK::R1(G)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • P(e);XS(E)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • P(e);CHECK::QAR(B)+K(F),XP(d)
      • B(a);XS(E)::QAR(B)+K(F),XP(d)
      • P(f);::QAR(B)+K(F),XP(e)
      • P(j);N_GUARD,SBLOCK::R1(G)
      • P(j);SBLOCK::QAR(B)+K(F)
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