MESON Chess Problem Database

Problem Display
PID: 185881 (8/6Q1/3PP1N1/3PpP1p/2p4P/2b1k3/1p2P2p/1N3K1B w - - 0 1)

Smedley, Don A

Chess, 1957

8/6Q1/3PP1N1/3PpP1p/2p4P/2b1k3/1p2P2p/1N3K1B

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qa7#
    • 1...Be1
      • 2.Qxe5#
      • 2.Qa7#
    • 1...Bd2
      • 2.Qxe5#
      • 2.Qa7#
    • 1...Bb4
      • 2.Qxe5#
    • 1...Bd4
      • 2.Qh6#
    • 1...Ba5
      • 2.Qxe5#
    • 1...e4
      • 2.Qxc3#
  • Tries
    • 1.Sf8?
      • 1...Kd4
        • 2.Qa7#
      • 1...Kf4
        • 2.Qg5#
      • 1...Be1
        • 2.Qxe5#
      • 1...Bd2
        • 2.Qxe5#
      • 1...Bb4
        • 2.Qxe5#
      • 1...Bd4
        • 2.Qh6#
        • 2.Qg3#
        • 2.Qg5#
      • 1...Ba5
        • 2.Qxe5#
      • 1...e4!
    • 1.Sh8?
      • 1...Kd4
        • 2.Qa7#
      • 1...Kf4
        • 2.Qg5#
      • 1...Be1
        • 2.Qxe5#
      • 1...Bd2
        • 2.Qxe5#
      • 1...Bb4
        • 2.Qxe5#
      • 1...Bd4
        • 2.Qh6#
        • 2.Qg3#
        • 2.Qg5#
      • 1...Ba5
        • 2.Qxe5#
      • 1...e4!
    • 1.Qf6?
      • 1...e4
        • 2.Qxc3#
      • 1...Be1
        • 2.Qxe5#
      • 1...Bd2
        • 2.Qxe5#
      • 1...Bb4
        • 2.Qxe5#
      • 1...Bd4
        • 2.Qg5#
      • 1...Ba5
        • 2.Qxe5#
      • 1...Kd4!
    • 1.Qh8?
      • 1...e4
        • 2.Qxc3#
      • 1...Be1
        • 2.Qxe5#
      • 1...Bd2
        • 2.Qxe5#
      • 1...Bb4
        • 2.Qxe5#
      • 1...Bd4
        • 2.Qh6#
      • 1...Ba5
        • 2.Qxe5#
      • 1...Kd4!
    • 1.d7?
      • 1...e4
        • 2.Qxc3#
      • 1...Be1
        • 2.Qxe5#
      • 1...Bd2
        • 2.Qxe5#
      • 1...Bb4
        • 2.Qxe5#
      • 1...Bd4
        • 2.Qh6#
      • 1...Ba5
        • 2.Qxe5#
      • 1...Kd4!
    • 1.e7?
      • 1...e4
        • 2.Qxc3#
      • 1...Be1
        • 2.Qxe5#
      • 1...Bd2
        • 2.Qxe5#
      • 1...Bb4
        • 2.Qxe5#
      • 1...Bd4
        • 2.Qh6#
      • 1...Ba5
        • 2.Qxe5#
      • 1...Kd4!
  • Keys
    • 1.Sf4!
      • 1...Kd4
        • 2.Qa7#
      • 1...Kxf4
        • 2.Qg5#
      • 1...exf4
        • 2.Qxc3#
      • 1...Be1
        • 2.Qxe5#
      • 1...Bd2
        • 2.Qxe5#
      • 1...Bb4
        • 2.Qxe5#
      • 1...Bd4
        • 2.Qg3#
      • 1...Ba5
        • 2.Qxe5#
      • 1...e4
        • 2.Sg2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(d);P_SPINP(f),S_FLIGHT::QAB(K)
    • B(c);N_GUARD::QAR2(K),XP(f)
    • B(c);SBLOCK::QAB(K)
    • P(f);OGATE::QAR2(K),XB(c)
  • Tries
    • Try
      • S(J);
      • Vars
        • K(d);P_SPINP(f),S_FLIGHT::QAB(K)
        • K(d);S_FLIGHT::QAB1(K)
        • B(c);N_GUARD::QAR2(K),XP(f)
      • Refutation
        • P(f);
    • Try
      • S(J);
      • Vars
        • K(d);P_SPINP(f),S_FLIGHT::QAB(K)
        • K(d);S_FLIGHT::QAB1(K)
        • B(c);N_GUARD::QAR2(K),XP(f)
      • Refutation
        • P(f);
    • Try
      • Q(K);
      • Vars
        • P(f);OGATE::QAR2(K),XB(c)
        • B(c);N_GUARD::QAR2(K),XP(f)
        • B(c);SBLOCK::QAB(K)
      • Refutation
        • K(d);P_SPINP(f),S_FLIGHT
    • Try
      • Q(K);
      • Vars
        • P(f);OGATE::QAR2(K),XB(c)
        • B(c);N_GUARD::QAR2(K),XP(f)
        • B(c);SBLOCK::QAB(K)
      • Refutation
        • K(d);P_SPINP(f),S_FLIGHT
    • Try
      • P(H);
      • Vars
        • P(f);OGATE::QAR2(K),XB(c)
        • B(c);N_GUARD::QAR2(K),XP(f)
        • B(c);SBLOCK::QAB(K)
      • Refutation
        • K(d);P_SPINP(f),S_FLIGHT
    • Try
      • P(I);
      • Vars
        • P(f);OGATE::QAR2(K),XB(c)
        • B(c);N_GUARD::QAR2(K),XP(f)
        • B(c);SBLOCK::QAB(K)
      • Refutation
        • K(d);P_SPINP(f),S_FLIGHT
  • Actual
    • S(J);
    • Vars
      • K(d);P_SPINP(f),S_FLIGHT::QAB(K)
      • K(d);OGATEB,S_FLIGHT,XS(J)::QAB1(K)
      • P(f);OGATE,SBLOCK,XS(J)::QAR2(K),XB(c)
      • B(c);N_GUARD::QAR2(K),XP(f)
      • B(c);SBLOCK::QAR2(K)
      • P(f);SBLOCK::S(J)
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Developed and maintained by Brian Stephenson.
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