MESON Chess Problem Database

Problem Display
PID: 6614 (6Q1/1N6/2p1rp2/2P4P/2bpk3/1p3R2/1K2P2B/4R3 w - - 0 1)

Gray, Robert

Glasgow Herald, 1932

6Q1/1N6/2p1rp2/2P4P/2bpk3/1p3R2/1K2P2B/4R3

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sd6#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Re7
      • 2.Sd6#
    • 1...Re8
      • 2.Sd6#
    • 1...Bd3
      • 2.Qxe6#
    • 1...Bb5
      • 2.Qxe6#
    • 1...Bd5
      • 2.Qg4#
    • 1...Ba6
      • 2.Qxe6#
  • Tries
    • 1.Sd6+?
      • 1...Kd5
        • 2.Rf5#
      • 1...Rxd6!
    • 1.Qh7+?
      • 1...f5
        • 2.Qxf5#
      • 1...Kd5!
    • 1.Qg6+?
      • 1...f5
        • 2.Qxf5#
      • 1...Kd5!
  • Keys
    • 1.Rd3!
      • 1...Kd5
        • 2.e4#
      • 1...Kf5
        • 2.Qg6#
      • 1...Bxd3
        • 2.Qxe6#
      • 1...Re5
        • 2.Sd6#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Re7
        • 2.Sd6#
      • 1...Re8
        • 2.Sd6#
      • 1...Bb5
        • 2.Qxe6#
      • 1...Bd5
        • 2.Qg4#
      • 1...Ba6
        • 2.Qxe6#
      • 1...f5
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD::S(H)
    • R(f);N_GUARD::S(H),XR(f)
    • B(b);N_GUARD::QAR2(I),XR(f)
    • B(b);SBLOCK::QAR2(I)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(d);P_SPINR(f),S_FLIGHT::R(E)
      • Refutation
        • R(f);XS(H)
    • Try
      • Q(I);CHECK
      • Vars
        • P(g);P_SPINP(g)::QAB1(I),XP(g)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • P(g);P_SPINP(g)::QAB1(I),XP(g)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(E);
    • Vars
      • K(d);OGATE,P_SPINP(c),P_SPINR(f),S_FLIGHT::P(C)
      • K(d);S_FLIGHT::QAB1(I)
      • B(b);N_GUARD,XR(E)::QAR2(I),XR(f)
      • R(f);N_GUARD::S(H)
      • R(f);N_GUARD::S(H),XR(f)
      • B(b);N_GUARD::QAR2(I),XR(f)
      • B(b);SBLOCK::QAR2(I)
      • P(g);SBLOCK::QAB(I)
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