MESON Chess Problem Database

Problem Display
PID: 258868 (B7/8/1K6/4N1B1/3k4/6Q1/2P1r3/b3n3 w - - 0 1)

Waterhouse, Albert F

Manchester Weekly Times, 1893

(First published on Fri Jul 7 1893)

B7/8/1K6/4N1B1/3k4/6Q1/2P1r3/b3n3

#2

6 + 4

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc2
      • 2.Qe3#
    • 1...Rd2
      • 2.Qe3#
    • 1...Rf2
      • 2.Qe3#
    • 1...Rg2
      • 2.Qe3#
    • 1...Rh2
      • 2.Qe3#
    • 1...Re3
      • 2.Qxe3#
  • Tries
    • 1.Qd3+?
      • 1...Kxe5
        • 2.Qd5#
      • 1...Sxd3!
  • Keys
    • 1.Qb3!
      • 1...Kxe5
        • 2.Qd5#
      • 1...Rxc2
        • 2.Qe3#
      • 1...Rxe5
        • 2.Qb4#
      • 1...Sxc2
        • 2.Sf3#
      • 1...Rd2
        • 2.Qe3#
      • 1...Rf2
        • 2.Qe3#
      • 1...Rg2
        • 2.Qe3#
      • 1...Rh2
        • 2.Qe3#
      • 1...Re3
        • 2.Qxe3#
      • 1...Re4
        • 2.Sc6#
      • 1...Bb2
        • 2.Qxb2#
      • 1...Bc3
        • 2.Qd5#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sd3
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,XP(A)::QAB1(B)
    • R(c);N_GUARD::QAB1(B)
    • R(c);N_GUARD::QAB1(B),XR(c)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT,XS(C)::QAR1(B)
      • Refutation
        • S(b);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(d);N_GUARD,S_FLIGHT,XS(C)::QAR1(B)
      • R(c);N_GUARD,XP(A)::QAB1(B)
      • R(c);SBLOCK,XS(C)::QAR2(B)
      • S(b);N_GUARD,XP(A)::S(C)
      • R(c);N_GUARD::QAB1(B)
      • R(c);N_GUARD::QAB1(B),XR(c)
      • R(c);SBLOCK::S(C)
      • B(a);N_GUARD::QAB(B),XB(a)
      • B(a);SBLOCK::QAR1(B)
      • S(b);N_GUARD::S(C)
      • S(b);N_GUARD::S(C),XS(b)
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