MESON Chess Problem Database

Problem Display
PID: 148906 (8/3NNQ2/4P2b/4P2r/3pk3/R3P2p/3P3P/1K4n1 w - - 0 1)

Tucker, Frederick G

Good Companions (April Complete Blocks), 1918

8/3NNQ2/4P2b/4P2r/3pk3/R3P2p/3P3P/1K4n1

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4
      • 2.Qf5#
    • 1...Rf5
      • 2.Qxf5#
    • 1...Rg5
      • 2.Qf4#
    • 1...Bxe3
      • 2.d3#
    • 1...Bf4
      • 2.Qxf4#
    • 1...Bg5
      • 2.Qf5#
    • 1...Bg7
      • 2.Qf4#
    • 1...Bf8
      • 2.Qf4#
    • 1...d3
      • 2.Ra4#
  • Tries
    • 1.Qg6+?
      • 1...Rf5
        • 2.Qxf5#
      • 1...Kf3!
    • 1.Qf2?
      • threat
        • 2.d3#
      • 1...d3
        • 2.Ra4#
      • 1...dxe3!
    • 1.Qh7+?
      • 1...Rf5
        • 2.Qxf5#
      • 1...Kf3!
  • Keys
    • 1.Qf1!
      • 1...Rxe5
        • 2.Sf6#
      • 1...Bxe3
        • 2.d3#
      • 1...dxe3
        • 2.Ra4#
      • 1...Rh4
        • 2.Qf5#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Rg5
        • 2.Qf4#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Bg5
        • 2.Qf5#
      • 1...Bg7
        • 2.Qf4#
      • 1...Bf8
        • 2.Qf4#
      • 1...Se2
        • 2.Qh1#
      • 1...Sf3
        • 2.Qd3#
      • 1...d3
        • 2.Ra4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(e);N_GUARD::QAB1(J)
    • R(e);N_GUARD::QAB1(J),XR(e)
    • R(e);S_CUTB(f)::QAR1(J)
    • B(f);SBLOCK,XP(E)::P(B)
    • B(f);N_GUARD::QAR1(J),XB(f)
    • B(f);S_CUTR(e)::QAB1(J)
    • B(f);N_GUARD::QAR1(J)
    • P(c);OGATEB,SBLOCK::R(D)
  • Tries
    • Try
      • Q(J);CHECK
      • Vars
        • R(e);N_GUARD,P_SPINR(e)::QAB1(J),XR(e)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(J);
      • Threat
        • P(B)
      • Vars
        • P(c);OGATEB,SBLOCK::R(D)
      • Refutation
        • P(c);XP(E)
    • Try
      • Q(J);CHECK
      • Vars
        • R(e);N_GUARD,P_SPINR(e)::QAB1(J),XR(e)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(J);
    • Vars
      • R(e);SBLOCK,XP(F)::S(H)
      • B(f);SBLOCK,XP(E)::P(B)
      • P(c);OGATEB,XP(E)::R(D)
      • R(e);N_GUARD::QAB1(J)
      • R(e);N_GUARD::QAB1(J),XR(e)
      • R(e);S_CUTB(f)::QAR1(J)
      • B(f);N_GUARD::QAR1(J),XB(f)
      • B(f);S_CUTR(e)::QAB1(J)
      • B(f);N_GUARD::QAR1(J)
      • S(a);OGATE::QAB(J)
      • S(a);SBLOCK::QAB1(J)
      • P(c);OGATEB::R(D)
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