MESON Chess Problem Database

Problem Display
PID: 64106 (6Bb/2K3k1/6bN/8/5N1n/B5R1/1P1n3R/7Q w - - 0 1)

Pierce, James

Illustrated London News, 1882

6Bb/2K3k1/6bN/8/5N1n/B5R1/1P1n3R/7Q

#2

9 + 5

4760 200 Classic Chess Puzzles 1993

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh6
      • 2.Rxg6#
    • 1...Sg2
      • 2.Rxg6#
    • 1...Sf3
      • 2.Rxg6#
    • 1...Sf5
      • 2.Rxg6#
  • Tries
    • 1.Rxd2?
      • 1...Kxh6
        • 2.Rxg6#
      • 1...Sg2
        • 2.Rxg6#
      • 1...Sf3
        • 2.Rxg6#
      • 1...Sf5
        • 2.Rxg6#
      • 1...Kf6!
    • 1.Qa8?
      • threat
        • 2.Qf8#
      • 1...Kxh6
        • 2.Rxg6#
      • 1...Kf6!
  • Keys
    • 1.Qc1!
      • 1...Kf6
        • 2.Qc3#
      • 1...Kxh6
        • 2.Rxg6#
      • 1...Sb1
        • 2.Sh5#
      • 1...Sf1
        • 2.Sh5#
      • 1...Sb3
        • 2.Sh5#
      • 1...Sdf3
        • 2.Sh5#
      • 1...Sc4
        • 2.Sh5#
      • 1...Se4
        • 2.Sh5#
      • 1...Sg2
        • 2.Rxg6#
        • 2.Qc3#
      • 1...Shf3
        • 2.Rxg6#
      • 1...Sf5
        • 2.Rxg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • K(d);N_SPINB(c),P_SPINS(b),S_FLIGHT,XS(G)::R1(E),XB(c)
    • S(b);N_GUARD::R1(E),XB(c)
  • Tries
    • Try
      • R(C);XS(a)
      • Vars
        • K(d);N_SPINB(c),P_SPINS(b),S_FLIGHT,XS(G)::R1(E),XB(c)
        • S(b);N_GUARD::R1(E),XB(c)
      • Refutation
        • K(d);N_SPINB(c),S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(d);N_SPINB(c),P_SPINS(b),S_FLIGHT,XS(G)::R1(E),XB(c)
      • Refutation
        • K(d);N_SPINB(c),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(d);N_SPINB(c),S_FLIGHT::QAB(A)
      • K(d);N_SPINB(c),P_SPINS(b),S_FLIGHT,XS(G)::R1(E),XB(c)
      • S(a);::S(F)
      • S(b);N_GUARD::R1(E),XB(c)
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