MESON Chess Problem Database

Problem Display
PID: 259520 (3QN3/p7/P1pP4/B1P1N1p1/2Bk1pp1/3P1pP1/5p2/5K2 w - - 0 1)

Uris, Miguel

Variantim, 2022

3QN3/p7/P1pP4/B1P1N1p1/2Bk1pp1/3P1pP1/5p2/5K2

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qf6#
  • Tries
    • 1.Sxc6+?
      • 1...Ke3
        • 2.Qe7#
      • 1...Kxc5!
    • 1.Sg7?
      • 1...Ke3
        • 2.Sf5#
      • 1...Kxc5
        • 2.Se6#
      • 1...Kxe5
        • 2.Bc3#
      • 1...fxg3!
    • 1.Bc3+?
      • 1...Ke3
        • 2.Sxg4#
      • 1...Kxc5
        • 2.Sd7#
        • 2.Qa5#
        • 2.d4#
      • 1...Kxc3!
    • 1.Qf6?
      • 1...Ke3
        • 2.Sxg4#
      • 1...Kxc5
        • 2.Sd7#
      • 1...fxg3!
    • 1.Qe7?
      • 1...Ke3
        • 2.Sxc6#
      • 1...Kxc5
        • 2.Qxa7#
      • 1...fxg3!
  • Keys
    • 1.Qxg5!
      • 1...Ke3
        • 2.Qxf4#
      • 1...Kxc5
        • 2.Sxf3#
      • 1...fxg3
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(G)::QAB1(J)
  • Tries
    • Try
      • S(G);CHECK,XP(g)
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAR(J)
      • Refutation
        • K(c);S_FLIGHT,XP(F)
    • Try
      • S(K);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::S(K)
        • K(c);N_GUARD,S_FLIGHT,XP(F)::S(K)
        • K(c);N_GUARD,S_FLIGHT,XS(G)::B(E)
      • Refutation
        • P(d);XP(C)
    • Try
      • B(E);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::S(G),XP(e)
      • Refutation
        • K(c);S_FLIGHT,XB(E)
    • Try
      • Q(J);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::S(G),XP(e)
        • K(c);N_GUARD,S_FLIGHT,XP(F)::S(G)
      • Refutation
        • P(d);XP(C)
    • Try
      • Q(J);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAR(J)+S(G),XP(g)
        • K(c);OGATEB,S_FLIGHT,XP(F)::QAB(J),XP(h)
      • Refutation
        • P(d);XP(C)
  • Actual
    • Q(J);XP(f)
    • Vars
      • K(c);N_GUARD,P_SPINP(d),S_FLIGHT::QAB1(J),XP(d)
      • K(c);N_GUARD,S_CUTP(e),S_FLIGHT,XP(F)::QAR(J)+S(G),XP(b)
      • P(d);XP(C)::S(G),XP(g)
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Developed and maintained by Brian Stephenson.
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