MESON Chess Problem Database

Problem Display
PID: 69570 (8/2prp3/1pN1P3/1p1k1P2/1B2p3/1K6/8/Q7 w - - 0 1)

Colpa, Johannes J

Tijdschrift vd NSB, 1898

8/2prp3/1pN1P3/1p1k1P2/1B2p3/1K6/8/Q7

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Qa8#
    • 1...Rd6
      • 2.Sxe7#
    • 1...Rd8
      • 2.Sxe7#
    • 1...e3
      • 2.Qh1#
  • Tries
    • 1.Qb2?
      • 1...e3
        • 2.Qg2#
      • 1...Rd6
        • 2.Sxe7#
      • 1...Rd8
        • 2.Sxe7#
      • 1...Kxc6!
    • 1.Qc3?
      • 1...Rd6
        • 2.Sxe7#
      • 1...Rd8
        • 2.Sxe7#
      • 1...e3!
    • 1.Qg7?
      • 1...e3
        • 2.Qg2#
      • 1...Rd6
        • 2.Sxe7#
      • 1...Rd8
        • 2.Sxe7#
      • 1...Kxc6!
    • 1.Qf1?
      • threat
        • 2.Qxb5#
      • 1...e3
        • 2.Qg2#
        • 2.Qh1#
        • 2.Qf3#
      • 1...Kxc6!
    • 1.Qa6?
      • threat
        • 2.Qxb5#
      • 1...Kxc6
        • 2.Qa8#
      • 1...e3!
    • 1.exd7?
      • threat
        • 2.Sxe7#
      • 1...e3
        • 2.Qh1#
      • 1...e5
        • 2.Se7#
      • 1...e6
        • 2.Se7#
      • 1...Kxc6!
  • Keys
    • 1.Qh8!
      • 1...Kxc6
        • 2.Qa8#
      • 1...e3
        • 2.Qh1#
      • 1...Rd6
        • 2.Sxe7#
      • 1...Rd8
        • 2.Sxe7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(E)::QAB(A)
    • R(f);N_GUARD::S(E),XP(g)
    • P(a);OGATEB::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • P(a);OGATEB::QAB(A)
        • R(f);N_GUARD::S(E),XP(g)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
    • Try
      • Q(A);
      • Vars
        • R(f);N_GUARD::S(E),XP(g)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • P(a);OGATEB::QAB(A)
        • R(f);N_GUARD::S(E),XP(g)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(b)
      • Vars
        • K(c);OGATEB,P_SPINP(d),S_FLIGHT,XS(E)::QAB(A)
      • Refutation
        • P(a);
    • Try
      • P(F);XR(f)
      • Threat
        • S(E),XP(g)
      • Vars
        • P(a);OGATEB::QAB(A)
        • P(g);::S(E)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
  • Actual
    • Q(A);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • P(a);OGATEB::QAB(A)
      • R(f);N_GUARD::S(E),XP(g)
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