MESON Chess Problem Database

Problem Display
PID: 258829 (8/5p2/Q7/3p1BPb/1PPkrpN1/2qp1R2/3p1PK1/B7 w - - 0 1)

Waterhouse, Albert F

Manchester Weekly Times, 1893

(First published on Fri Apr 14 1893)

8/5p2/Q7/3p1BPb/1PPkrpN1/2qp1R2/3p1PK1/B7

#2

10 + 9

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Bxb2#
    • 1...Re1
      • 2.Rxd3#
    • 1...Re2
      • 2.Rxd3#
    • 1...Re5
      • 2.Rxd3#
    • 1...Re6
      • 2.Rxd3#
    • 1...Re7
      • 2.Rxd3#
    • 1...Re8
      • 2.Rxd3#
    • 1...dxc4
      • 2.Qd6#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qc5#
        • 2.Qxd5#
      • 1...Bxg4
        • 2.Qxd5#
      • 1...dxc4
        • 2.Qd7#
        • 2.Qc5#
      • 1...Qb2
        • 2.Bxb2#
      • 1...Re5
        • 2.Rxd3#
        • 2.Qc5#
      • 1...Qxa1!
    • 1.Qc6?
      • threat
        • 2.Qxd5#
        • 2.Qc5#
      • 1...Bxg4
        • 2.Qxd5#
      • 1...dxc4
        • 2.Qxe4#
        • 2.Qd7#
        • 2.Qc5#
        • 2.Qd6#
      • 1...Qb2
        • 2.Bxb2#
      • 1...Re5
        • 2.Rxd3#
        • 2.Qc5#
      • 1...Qxa1!
    • 1.Qf6+?
      • 1...Re5
        • 2.Rxf4#
      • 1...Kxc4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sc6#
      • 1...Bxf3+
        • 2.Sxf3#
      • 1...Kxe5
        • 2.Qf6#
      • 1...Qxa1
        • 2.Qxa1#
      • 1...Rxe5
        • 2.Rxd3#
      • 1...dxc4
        • 2.Qd6#
      • 1...Qb2
        • 2.Bxb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • Q(b);OGATEB::B(A),XQ(b)
    • R(e);::R1(D),XP(c)
    • R(e);P_PINP(B)::R1(D),XP(c)
    • P(g);OGATEB,SBLOCK,XP(F)::QAR2(J)
  • Tries
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • B(h);XS(G)::QAR1(J),XP(g)
        • Q(b);OGATEB::B(A),XQ(b)
      • Refutation
        • Q(b);N_SPINQ(b),XB(A)
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • B(h);XS(G)::QAR1(J),XP(g)
        • Q(b);OGATEB::B(A),XQ(b)
      • Refutation
        • Q(b);N_SPINQ(b),XB(A)
    • Try
      • Q(J);CHECK
      • Vars
        • R(e);P_SPINR(e)::R(D),XP(f)
      • Refutation
        • K(d);N_SPINQ(b),P-FLIGHT,XP(F)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • B(h);CHECK,XR(D)::S(G),XB(h)
      • K(d);OGATEB,S_FLIGHT,XS(G)::QAB1(J)
      • Q(b);N_SPINQ(b),OGATE,XB(A)::QAB(J),XQ(b)
      • R(e);SBLOCK,XS(G)::R1(D),XP(c)
      • P(g);OGATEB,XP(F)::QAR2(J)
      • Q(b);OGATEB::B(A),XQ(b)
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