MESON Chess Problem Database

Problem Display
PID: 6802 (6b1/6N1/7K/1p2p3/RN2k1p1/4P3/B1n1R1P1/Q7 w - - 0 1)

Mansfield, Comins

Social Chess Quarterly (The), 1933

6b1/6N1/7K/1p2p3/RN2k1p1/4P3/B1n1R1P1/Q7

#2

9 + 6

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Bxd5#
    • 1...Bh7
      • 2.Bd5#
    • 1...Sxb4
      • 2.Qb1#
  • Tries
    • 1.Bxg8?
      • threat
        • 2.Bd5#
        • 2.Bh7#
      • 1...Sxb4
        • 2.Qb1#
      • 1...Sd4
        • 2.Bd5#
      • 1...Sxe3!
  • Keys
    • 1.Sh5!
      • threat
        • 2.Sg3#
      • 1...Kf5
        • 2.e4#
      • 1...Sxe3
        • 2.Bb1#
      • 1...Sxb4
        • 2.Qb1#
      • 1...g3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(f);N_GUARD::B(B),XB(f)
    • B(f);N_GUARD::B(B)
    • S(a);OGATEB,P_SPINS(a),XS(G)::QAB(A)
  • Tries
    • Try
      • B(B);XB(f)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATEB,P_SPINS(a),XS(G)::QAB(A)
        • S(a);::B(B)
      • Refutation
        • S(a);P_SPINS(a),XP(E)
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • K(b);OGATE,S_FLIGHT::P(E)
      • S(a);OGATEB,P_SPINS(a),XP(E)::B(B)
      • S(a);OGATEB,P_SPINS(a),XS(G)::QAB(A)
      • P(c);::S(I),XP(c)
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