MESON Chess Problem Database

Problem Display
PID: 103816 (3n4/1n6/1Q2pp2/6p1/2PpkPP1/1Nb2R2/3p4/3B2K1 w - - 0 1)

van Eelde, Antonie Clarus Johannes

Checkmate, 1903

3n4/1n6/1Q2pp2/6p1/2PpkPP1/1Nb2R2/3p4/3B2K1

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Sxd2#
    • 1...Bb2
      • 2.Sxd2#
    • 1...Bb4
      • 2.Qxd4#
    • 1...Ba5
      • 2.Qxd4#
    • 1...Sa5
      • 2.Sc5#
    • 1...Sc5
      • 2.Sxc5#
    • 1...Sd6
      • 2.Sc5#
    • 1...Sc6
      • 2.Qxc6#
    • 1...Sf7
      • 2.Qc6#
      • 2.Qxb7#
    • 1...d3
      • 2.Qe3#
  • Tries
    • 1.Bc2+?
      • 1...d3
        • 2.Qe3#
      • 1...Kxf3!
    • 1.Qxb7+?
      • 1...Sc6
        • 2.Sc5#
        • 2.Qxc6#
      • 1...Sxb7!
  • Keys
    • 1.Qd6!
      • 1...Sxd6
        • 2.Sc5#
      • 1...gxf4
        • 2.Qxf4#
      • 1...e5
        • 2.Qd5#
      • 1...Ba1
        • 2.Sxd2#
      • 1...Bb2
        • 2.Sxd2#
      • 1...Bb4
        • 2.Qxd4#
      • 1...Ba5
        • 2.Qxd4#
      • 1...Sa5
        • 2.Sc5#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sf7
        • 2.Qc6#
      • 1...d3
        • 2.Qxd3#
      • 1...f5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::S(C),XP(a)
    • B(b);N_GUARD::QAR1(H),XP(c)
    • S(h);N_GUARD::S(C)
    • S(h);N_GUARD::S(C),XS(h)
    • S(i);N_GUARD::QAB(H),XS(i)
    • P(c);OGATE::QAR1(H)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • P(c);OGATE,P_SPINP(c)::QAR1(H)
      • Refutation
        • K(d);S_FLIGHT,XR(D)
    • Try
      • Q(H);CHECK,XS(h)
      • Refutation
        • S(i);XQ(H)
  • Actual
    • Q(H);
    • Vars
      • S(h);N_GUARD,XQ(H)::S(C)
      • P(e);OGATE,XP(F)::QAR1(H),XP(e)
      • P(f);N_GUARD::QAB1(H)
      • B(b);N_GUARD::S(C),XP(a)
      • B(b);N_GUARD::QAR1(H),XP(c)
      • S(h);N_GUARD::S(C)
      • S(h);N_GUARD::S(C),XS(h)
      • S(i);N_GUARD::QAB(H),XS(i)
      • S(i);N_GUARD::QAB(H)
      • P(c);OGATE::QAB1(H),XP(c)
      • P(g);N_GUARD::QAR1(H)
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