MESON Chess Problem Database

Problem Display
PID: 222616 (8/8/8/2BK3B/3pN1R1/1Qb5/2p1kN2/R1n5 w - - 0 1)

Huggitt, WB

Sp. Prize, Sheffield Independent, 1884

8/8/8/2BK3B/3pN1R1/1Qb5/2p1kN2/R1n5

#2

8 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke1
      • 2.Rg1#
    • 1...Bxa1
      • 2.Rg1#
    • 1...Be1
      • 2.Rg1#
    • 1...Bb2
      • 2.Rg1#
    • 1...Bd2
      • 2.Rg1#
    • 1...Bb4
      • 2.Rg1#
    • 1...Ba5
      • 2.Rg1#
    • 1...Sa2
      • 2.Rg3#
    • 1...Sxb3
      • 2.Rg3#
    • 1...Sd3
      • 2.Rg3#
    • 1...d3
      • 2.Rg1#
  • Tries
    • 1.Rg3+?
      • 1...Ke1
        • 2.Rxc1#
        • 2.Rg1#
      • 1...Kf1!
    • 1.Rh4+?
      • 1...Ke1
        • 2.Rxc1#
        • 2.Rh1#
      • 1...Ke3
        • 2.Bxd4#
      • 1...Kf1!
    • 1.Qxc3?
      • threat
        • 2.Rg1#
      • 1...Sd3
        • 2.Rg3#
        • 2.Qxd3#
      • 1...Kf1!
  • Keys
    • 1.Sh3!
      • 1...Kd1
        • 2.Rg1#
      • 1...Ke1
        • 2.Rg1#
      • 1...Kf1
        • 2.Rg1#
      • 1...Kd3
        • 2.Rg3#
      • 1...Ke3
        • 2.Rg3#
      • 1...Kf3
        • 2.Rg3#
      • 1...Bxa1
        • 2.Rg1#
      • 1...Sxb3
        • 2.Rg3#
      • 1...Be1
        • 2.Rg1#
        • 2.Rf4#
      • 1...Bb2
        • 2.Rg1#
      • 1...Bd2
        • 2.Rg1#
      • 1...Bb4
        • 2.Rg1#
      • 1...Ba5
        • 2.Rg1#
      • 1...Sa2
        • 2.Rg3#
      • 1...Sd3
        • 2.Rg3#
      • 1...d3
        • 2.Rg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT,P_SPINS(a)::R(E)
    • B(d);XR(A)::B(H)+R(E)
    • B(d);::B(H)+R(E)
    • S(a);::B(H)+R(E)
    • S(a);XQ(C)::B(H)+R(E)
    • P(e);::B(H)+R(E)
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINB(d),P_SPINP(e)::B(F),XP(e)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • Q(C);XB(d)
      • Threat
        • B(H)+R(E)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(c);P_SPINP(b),P_SPINS(a),S_FLIGHT::B(H)+R(E),DCHECK
      • K(c);P-FLIGHT,P_SPINS(a)::R(E)
      • K(c);P_SPINS(a),S_FLIGHT::R1(E)
      • K(c);P_SPINB(d),S_FLIGHT::R(E)
      • K(c);P-FLIGHT,P_SPINB(d),P_SPINP(e)::R(E)
      • K(c);P_SPINB(d),S_FLIGHT::B(H)+R(E),DCHECK
      • B(d);XR(A)::B(H)+R(E)
      • S(a);XQ(C)::B(H)+R(E)
      • B(d);::B(H)+R(E)
      • S(a);::B(H)+R(E)
      • P(e);SBLOCK::B(H)+R(E)
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