MESON Chess Problem Database

Problem Display
PID: 230888 (K7/BQ6/6p1/7n/4N3/2N4p/6qp/5B1k w - - 0 1)

Desanges, L

The Field, 1898

(First published on Sat Apr 9 1898)

K7/BQ6/6p1/7n/4N3/2N4p/6qp/5B1k

#2

6 + 6

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf1
      • 2.Sg3#
    • 1...Qxe4
      • 2.Qxe4#
    • 1...Qg1
      • 2.Sf2#
      • 2.Sg3#
    • 1...Qa2
      • 2.Sg3#
    • 1...Qb2
      • 2.Sg3#
    • 1...Qc2
      • 2.Sg3#
    • 1...Qd2
      • 2.Sxd2#
      • 2.Sg3#
    • 1...Qe2
      • 2.Sg3#
    • 1...Qg3
      • 2.Sxg3#
    • 1...Qg4
      • 2.Sg3#
    • 1...Qg5
      • 2.Sg3#
      • 2.Sxg5#
    • 1...Sg3
      • 2.Sxg3#
    • 1...Sf4
      • 2.Sg3#
    • 1...Sf6
      • 2.Sg3#
    • 1...Sg7
      • 2.Sg3#
  • Keys
    • 1.Se2!
      • threat
        • 2.Sf2#
      • 1...Qxe4
        • 2.Qxe4#
      • 1...Qxe2
        • 2.Sg3#
      • 1...Qf2
        • 2.Sxf2#
        • 2.S4g3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 10
  • Sets
    • Q(b);XB(A)::QAB(E)+S(C),DCHECK
    • Q(b);OGATE,P_PINQ(E),P_SPINQ(b),XS(C)::QAB(E),XQ(b)
    • Q(b);P_PINB(D)::QAB(E)+S(C),DCHECK
    • Q(b);::QAB(E)+S(C),DCHECK
    • Q(b);::QAB(E)+S(C),DCHECK,XQ(b)
    • S(e);N_GUARD::S(C),XS(e)
    • S(e);N_GUARD::S(C)
  • Actual
    • S(B);
    • Threat
      • S(C)
    • Vars
      • Q(b);OGATE,P_PINQ(E),P_SPINQ(b),XS(C)::QAB(E),XQ(b)
      • Q(b);XS(B)::QAB(E)+S(C),DCHECK
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