MESON Chess Problem Database

Problem Display
PID: 48781 (8/2p2p2/2Pp1Bp1/pK1k4/P2p1nQ1/3N1P1n/4P3/8 w - - 0 1)

Meiners, Willem Barend Hendrik

Tijdschrift vd NSB, 1893

8/2p2p2/2Pp1Bp1/pK1k4/P2p1nQ1/3N1P1n/4P3/8

#2

8 + 9

56 The Problemist 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Sg1
      • 2.Sxf4#
    • 1...Sf2
      • 2.Sxf4#
    • 1...Sg5
      • 2.Sxf4#
    • 1...Sxe2
      • 2.Qe4#
    • 1...Sg2
      • 2.Qe4#
    • 1...Sxd3
      • 2.Qe4#
    • 1...Sh5
      • 2.Qe4#
    • 1...Se6
      • 2.Qe4#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Qd7?
      • 1...Sxe2
        • 2.Qxf7#
      • 1...Sxd3
        • 2.Qxf7#
      • 1...Sg1
        • 2.Sxf4#
      • 1...Sf2
        • 2.Sxf4#
      • 1...Sg5
        • 2.Sxf4#
      • 1...Sg2
        • 2.Qxf7#
      • 1...Sh5
        • 2.Qxf7#
      • 1...g5
        • 2.Qf5#
      • 1...Se6!
    • 1.Qg5+?
      • 1...Sxg5
        • 2.Sxf4#
      • 1...Ke6!
    • 1.e3?
      • threat
        • 2.e4#
      • 1...Sf2
        • 2.Sxf4#
      • 1...Sg5
        • 2.Sxf4#
      • 1...dxe3!
  • Keys
    • 1.Sc5!
      • 1...Sxe2
        • 2.Qe4#
      • 1...dxc5
        • 2.Qd7#
      • 1...Sg1
        • 2.Qg5#
      • 1...Sf2
        • 2.Qg5#
      • 1...Sg5
        • 2.Qxg5#
      • 1...Sg2
        • 2.Qxd4#
        • 2.Qe4#
      • 1...Sd3
        • 2.Qxd4#
        • 2.Qe4#
      • 1...Sh5
        • 2.Qxd4#
        • 2.Qe4#
      • 1...Se6
        • 2.Qe4#
      • 1...d3
        • 2.e4#
      • 1...g5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::S(B),XS(c)
    • S(c);OGATE,XP(A)::QAB1(E)
    • S(c);OGATE::QAB1(E)
    • S(c);OGATE,XS(B)::QAB1(E)
    • P(g);N_GUARD::QAR2(E)
  • Tries
    • Try
      • Q(E);P_PINP(f)
      • Vars
        • S(c);N_GUARD,XP(A)::QAB(E),XP(i)
        • S(c);N_GUARD,XS(B)::QAB(E),XP(i)
        • S(a);N_GUARD::S(B),XS(c)
        • S(c);N_GUARD::QAB(E),XP(i)
        • P(g);N_GUARD::QAR2(E)
      • Refutation
        • S(c);
    • Try
      • Q(E);CHECK
      • Vars
        • S(a);XQ(E)::S(B),XS(c)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • P(A);
      • Threat
        • P(A)
      • Vars
        • S(a);N_GUARD::S(B),XS(c)
      • Refutation
        • P(b);XP(A)
  • Actual
    • S(B);
    • Vars
      • S(c);OGATE,XP(A)::QAB1(E)
      • P(f);OGATEB,XS(B)::QAR2(E)
      • S(a);N_GUARD::QAR(E)
      • S(a);N_GUARD::QAR(E),XS(a)
      • S(c);OGATE::QAB1(E)
      • P(b);N_GUARD::P(A)
      • P(g);N_GUARD::QAR2(E)
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