MESON Chess Problem Database

Problem Display
PID: 219794 (1B2bN2/4N1Q1/B7/Kn2r2R/3kP3/1P2p3/PP2R3/3r4 w - - 0 1)

Bristow, Henry

The Field, 1884

(First published on Sat Sep 20 1884)

1B2bN2/4N1Q1/B7/Kn2r2R/3kP3/1P2p3/PP2R3/3r4

#2

12 + 6

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Se6#
    • 1...Rd3
      • 2.Qxe5#
    • 1...Sa3+
      • 2.Qxe5#
    • 1...Sc3+
      • 2.Qxe5#
    • 1...Sd6+
      • 2.Qxe5#
    • 1...Sa7+
      • 2.Qxe5#
    • 1...Sc7+
      • 2.Qxe5#
  • Tries
    • 1.Bxb5?
      • threat
        • 2.Qxe5#
      • 1...Kxe4
        • 2.Qg4#
      • 1...Kc5
        • 2.Se6#
      • 1...Bxb5!
    • 1.Qg5?
      • threat
        • 2.Qxe3#
      • 1...Sa3+
        • 2.Qxe5#
      • 1...Sc3+
        • 2.Qxe5#
      • 1...Sd6+
        • 2.Qxe5#
      • 1...Sa7+
        • 2.Qxe5#
      • 1...Sc7+
        • 2.Qxe5#
      • 1...Kd3
        • 2.Qxe3#
      • 1...Kxe4
        • 2.Qxe3#
      • 1...Kc5
        • 2.Se6#
      • 1...Rxe4
        • 2.Qd5#
      • 1...Rd3
        • 2.Qxe5#
      • 1...Rxg5!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qxe3#
      • 1...Sa3+
        • 2.Qxe5#
      • 1...Sc3+
        • 2.Qxe5#
      • 1...Sd6+
        • 2.Qxe5#
      • 1...Sa7+
        • 2.Qxe5#
      • 1...Sc7+
        • 2.Qxe5#
      • 1...Kd3
        • 2.Qxe3#
      • 1...Kxe4
        • 2.Qxe3#
      • 1...Kc5
        • 2.Se6#
      • 1...Rxe4
        • 2.Rd5#
      • 1...Rd3
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(L)
    • R(a);SBLOCK::QAB1(J),XR(e)
    • S(d);CHECK::QAB1(J),XR(e)
  • Tries
    • Try
      • B(H);P_SPINB(H),XS(d)
      • Threat
        • QAB1(J),XR(e)
      • Vars
        • K(c);N_SPINR(e),OGATEB,P-FLIGHT,P_SPINP(b),XP(E)::QAR2(J)
        • K(c);N_PINB(H),S_FLIGHT::S(L)
      • Refutation
        • B(f);XB(H)
    • Try
      • Q(J);N_PINR(e)
      • Threat
        • QAB1(J),XP(b)
      • Vars
        • S(d);CHECK::QAB1(J),XR(e)
        • K(c);P-FLIGHT,P_SPINS(d)::QAR1(J),XP(b)
        • K(c);P-FLIGHT,P_SPINP(b),XP(E)::QAR1(J),XP(b)
        • K(c);P_SPINR(e),S_FLIGHT::S(L)
        • R(e);OGATE,XP(E)::QAR1(J)
        • R(a);SBLOCK::QAB1(J),XR(e)
      • Refutation
        • R(e);XQ(J)
  • Actual
    • Q(J);N_PINR(e)
    • Threat
      • QAB1(J),XP(b)
    • Vars
      • S(d);CHECK::QAB1(J),XR(e)
      • K(c);P-FLIGHT,P_SPINP(b),P_SPINS(d)::QAR1(J),XP(b)
      • K(c);P-FLIGHT,P_SPINP(b),XP(E)::QAR1(J),XP(b)
      • K(c);P_SPINR(e),S_FLIGHT::S(L)
      • R(e);OGATE,SBLOCK,XP(E)::R1(G)
      • R(a);SBLOCK::QAB1(J),XR(e)
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