MESON Chess Problem Database

Problem Display
PID: 30764 (2Q5/p5n1/P2p2p1/KR1N2P1/1Pp1kP2/2P2p1B/1nP5/8 w - - 0 1)

van Eelde, Antonie Clarus Johannes

Haarlemsche Courant, 1903

2Q5/p5n1/P2p2p1/KR1N2P1/1Pp1kP2/2P2p1B/1nP5/8

#2

11 + 8

2638 White to Play 1913

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qxc4#
    • 1...Sd3
      • 2.Qxc4#
    • 1...Sa4
      • 2.Qxc4#
    • 1...Sf5
      • 2.Qe6#
    • 1...Sh5
      • 2.Qe6#
      • 2.Qe8#
    • 1...Se6
      • 2.Qxe6#
    • 1...Se8
      • 2.Qe6#
      • 2.Qxe8#
    • 1...f2
      • 2.Bg2#
  • Tries
    • 1.Bg4?
      • 1...Sd1
        • 2.Qxc4#
      • 1...Sd3
        • 2.Qxc4#
      • 1...Sa4
        • 2.Qxc4#
      • 1...Sf5
        • 2.Qe6#
      • 1...Sh5
        • 2.Qe6#
        • 2.Qe8#
      • 1...Se6
        • 2.Qxe6#
      • 1...Se8
        • 2.Qe6#
        • 2.Qxe8#
      • 1...f2!
    • 1.Bf5+?
      • 1...Sxf5
        • 2.Qe6#
      • 1...gxf5!
    • 1.Rb6?
      • 1...Kxd5
        • 2.Qb7#
        • 2.Qc6#
        • 2.Qa8#
      • 1...f2
        • 2.Bg2#
      • 1...Sd1
        • 2.Qxc4#
      • 1...Sd3
        • 2.Qxc4#
      • 1...Sa4
        • 2.Qxc4#
      • 1...Sf5
        • 2.Qe6#
      • 1...Sh5
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Se8
        • 2.Qe6#
      • 1...axb6+!
    • 1.Rb7?
      • 1...f2
        • 2.Bg2#
      • 1...Sd1
        • 2.Qxc4#
      • 1...Sd3
        • 2.Qxc4#
      • 1...Sa4
        • 2.Qxc4#
      • 1...Sf5
        • 2.Qe6#
      • 1...Sh5
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Se8
        • 2.Qe6#
      • 1...Kxd5!
    • 1.Qe8+?
      • 1...Se6
        • 2.Qxg6#
        • 2.Qxe6#
      • 1...Sxe8!
  • Keys
    • 1.Rb8!
      • 1...Kxd5
        • 2.Qb7#
      • 1...f2
        • 2.Bg2#
      • 1...Sd1
        • 2.Qxc4#
      • 1...Sd3
        • 2.Qxc4#
      • 1...Sa4
        • 2.Qxc4#
      • 1...Sf5
        • 2.Qe6#
      • 1...Sh5
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Se8
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR2(K),XP(c)
    • S(h);N_GUARD::QAR2(K)
    • S(h);N_GUARD::QAR2(K),XS(h)
    • P(b);OGATEB::B(C)
  • Tries
    • Try
      • B(C);
      • Vars
        • S(a);N_GUARD::QAR2(K),XP(c)
        • S(h);N_GUARD::QAR2(K)
        • S(h);N_GUARD::QAR2(K),XS(h)
      • Refutation
        • P(b);
    • Try
      • B(C);CHECK
      • Vars
        • S(h);XB(C)::QAR2(K)
      • Refutation
        • P(f);XB(C)
    • Try
      • R(G);
      • Vars
        • P(b);OGATEB::B(C)
        • S(a);N_GUARD::QAR2(K),XP(c)
        • S(h);N_GUARD::QAR2(K)
        • S(h);N_GUARD::QAR2(K),XS(h)
      • Refutation
        • P(g);CHECK,XR(G)
    • Try
      • R(G);
      • Vars
        • P(b);OGATEB::B(C)
        • S(a);N_GUARD::QAR2(K),XP(c)
        • S(h);N_GUARD::QAR2(K)
        • S(h);N_GUARD::QAR2(K),XS(h)
      • Refutation
        • K(d);S_FLIGHT,XS(H)
    • Try
      • Q(K);CHECK
      • Refutation
        • S(h);XQ(K)
  • Actual
    • R(G);
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(H)::QAB(K)
      • P(b);OGATEB::B(C)
      • S(a);N_GUARD::QAR2(K),XP(c)
      • S(h);N_GUARD::QAR2(K)
      • S(h);N_GUARD::QAR2(K),XS(h)
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