MESON Chess Problem Database

Problem Display
PID: 221052 (K7/4B2B/R7/2n5/3knP2/1P2N3/8/7Q w - - 0 1)

Garratt, JH

The Field, 1890

(First published on Sat Oct 11 1890)

K7/4B2B/R7/2n5/3knP2/1P2N3/8/7Q

#2

8 + 3

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Sc2#
  • Tries
    • 1.Sd1?
      • 1...Kd5
        • 2.Rd6#
      • 1...Sxb3
        • 2.Qxe4#
      • 1...Sxa6
        • 2.Qxe4#
      • 1...Sd2
        • 2.Bf6#
        • 2.Rd6#
      • 1...Sf2
        • 2.Bf6#
        • 2.Rd6#
      • 1...Sc3
        • 2.Bf6#
      • 1...Sg3
        • 2.Bf6#
        • 2.Rd6#
      • 1...Sg5
        • 2.Bf6#
        • 2.Rd6#
      • 1...Sd6
        • 2.Bf6#
        • 2.Rxd6#
      • 1...Sf6
        • 2.Bxf6#
      • 1...Sd3
        • 2.Qxe4#
      • 1...Sa4
        • 2.Qxe4#
      • 1...Se6
        • 2.Qxe4#
      • 1...Sb7
        • 2.Qxe4#
      • 1...Sd7
        • 2.Qxe4#
      • 1...Kd3!
  • Keys
    • 1.Sd5!
      • 1...Kd3
        • 2.Qd1#
      • 1...Kxd5
        • 2.Rd6#
      • 1...Sxb3
        • 2.Qxe4#
      • 1...Sxa6
        • 2.Qxe4#
      • 1...Sd2
        • 2.Bf6#
      • 1...Sf2
        • 2.Bf6#
      • 1...Sc3
        • 2.Bf6#
      • 1...Sg3
        • 2.Bf6#
      • 1...Sg5
        • 2.Bf6#
      • 1...Sd6
        • 2.Bf6#
      • 1...Sf6
        • 2.Bxf6#
      • 1...Sd3
        • 2.Qxe4#
      • 1...Sa4
        • 2.Qxe4#
      • 1...Se6
        • 2.Qxe4#
      • 1...Sb7
        • 2.Qxe4#
      • 1...Sd7
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::S(C)
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT,P_SPINS(b)::R1(E)
        • S(c);N_GUARD,XP(B)::QAR1(A),XS(b)
        • S(c);N_GUARD,XR(E)::QAR1(A),XS(b)
        • S(b);N_GUARD::B(F)
        • S(b);N_GUARD::B(F),XS(b)
        • S(c);N_GUARD::QAR1(A),XS(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINS(b)
  • Actual
    • S(C);
    • Vars
      • K(a);P-FLIGHT,P_SPINS(b)::QAR2(A)
      • K(a);OGATEB,P-FLIGHT,P_SPINS(b),XS(C)::R1(E)
      • S(c);N_GUARD,XP(B)::QAR1(A),XS(b)
      • S(c);N_GUARD,XR(E)::QAR1(A),XS(b)
      • S(b);N_GUARD::B(F)
      • S(b);N_GUARD::B(F),XS(b)
      • S(c);N_GUARD::QAR1(A),XS(b)
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