MESON Chess Problem Database

Problem Display
PID: 258803 (8/B6Q/1R2N3/2nB4/1N2p3/1p2kr1R/1P6/3K4 w - - 0 1)

Carson, J Roy

Manchester Weekly Times, 1893

(First published on Fri Feb 24 1893)

8/B6Q/1R2N3/2nB4/1N2p3/1p2kr1R/1P6/3K4

#2

9 + 5

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sa6
      • 2.Rxa6#
    • 1...Sb7
      • 2.Rxb7#
  • Tries
    • 1.Ke1?
      • threat
        • 2.Qh6#
      • 1...Rxh3
        • 2.Qxh3#
      • 1...Sxe6
        • 2.Qxe4#
      • 1...Rg3
        • 2.Rxg3#
      • 1...Sd3+!
    • 1.Qh4?
      • threat
        • 2.Qe1#
      • 1...Rxh3
        • 2.Qf4#
      • 1...Sxe6
        • 2.Rxe6#
      • 1...Rg3
        • 2.Qxg3#
        • 2.Qf4#
      • 1...Sd3!
  • Keys
    • 1.Sd3!
      • 1...Kxd3
        • 2.Rxf3#
      • 1...Rxh3
        • 2.Qxh3#
      • 1...Sxd3
        • 2.Rxb3#
      • 1...Sxe6
        • 2.Qxe4#
      • 1...exd3
        • 2.Rxf3#
      • 1...Rg3
        • 2.Rxg3#
      • 1...Sa4
        • 2.Qxe4#
      • 1...Sa6
        • 2.Qxe4#
      • 1...Sb7
        • 2.Qxe4#
      • 1...Sd7
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(e);OGATEB::B(H)+R(F),XS(e)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • QAB(I)
      • Vars
        • R(c);N_SPINR(c),OGATE,XR(C)::QAR(I),XR(c)
        • S(e);N_GUARD,XS(G)::QAR1(I),XP(d)
        • R(c);OGATEB::R(C),XR(c)
      • Refutation
        • S(e);CHECK
    • Try
      • Q(I);
      • Threat
        • QAR2(I)
      • Vars
        • R(c);N_SPINR(c),XR(C)::QAB1(I)
        • S(e);OGATE,XS(G)::B(H)+R(F),XS(e)
      • Refutation
        • S(e);
  • Actual
    • S(D);
    • Vars
      • K(b);N_GUARD,P-FLIGHT,P_SPINP(d),XS(D)::R(C),XR(c)
      • R(c);N_SPINR(c),OGATE,XR(C)::QAR(I),XR(c)
      • S(e);OGATEB,XS(D)::B(H)+R(F),XP(a)
      • S(e);N_GUARD,XS(G)::QAR1(I),XP(d)
      • P(d);N_GUARD,XS(D)::R1(C),XR(c)
      • R(c);OGATEB::R(C),XR(c)
      • S(e);N_GUARD::QAR1(I),XP(d)
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