MESON Chess Problem Database

Problem Display
PID: 151581 (8/2Q5/r1p2p2/3kN3/n4R2/1P2RKp1/1n1p4/B2rb3 w - - 0 1)

Andrew, Frederick William

Hampstead and Highgate Express, 1897

(First published on Sat Mar 20 1897)

8/2Q5/r1p2p2/3kN3/n4R2/1P2RKp1/1n1p4/B2rb3

#2

7 + 10

14867 BCPS Library 2014
15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qd7#
    • 1...Ra5
      • 2.Qxc6#
    • 1...Ra7
      • 2.Qxc6#
    • 1...Ra8
      • 2.Qxc6#
    • 1...Sb6
      • 2.Qxc6#
    • 1...fxe5
      • 2.Rxe5#
      • 2.Qxe5#
  • Tries
    • 1.Sxc6?
      • threat
        • 2.Sb4#
        • 2.Se7#
        • 2.Rf5#
      • 1...Kc5
        • 2.Rf5#
      • 1...Rb6
        • 2.Se7#
        • 2.Rf5#
      • 1...Sd3
        • 2.Se7#
      • 1...Sc4
        • 2.Sb4#
        • 2.Se7#
      • 1...f5
        • 2.Sb4#
        • 2.Se7#
        • 2.Re5#
        • 2.Rxf5#
      • 1...Rxc6!
    • 1.Rd4+?
      • 1...Kxd4
        • 2.Qd6#
      • 1...Ke6
        • 2.Qd7#
      • 1...Kc5!
    • 1.Qd8+?
      • 1...Ke6
        • 2.Rxf6#
        • 2.Qd7#
      • 1...Kc5!
  • Keys
    • 1.Rf5!
      • threat
        • 2.Sxc6#
      • 1...Kd4
        • 2.Qd6#
      • 1...Kc5
        • 2.Sxc6#
      • 1...Ke6
        • 2.Qd7#
      • 1...fxe5
        • 2.Qxe5#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sc4
        • 2.Sxc4#
      • 1...c5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • K(g);S_FLIGHT::QAB1(G)
    • R(h);N_GUARD::QAB1(G),XP(i)
    • S(f);S_CUTR(h)::QAB1(G),XP(i)
  • Tries
    • Try
      • S(F);XP(i)
      • Threat
        • DUALS(3)
      • Vars
        • K(g);P-FLIGHT::R(E)
        • S(c);::S(F)
      • Refutation
        • R(h);XS(F)
    • Try
      • R(E);CHECK
      • Vars
        • K(g);P-FLIGHT,P_SPINS(c),XR(E)::QAR2(G)
        • K(g);S_FLIGHT::QAB1(G)
      • Refutation
        • K(g);P-FLIGHT,P_SPINP(i)
    • Try
      • Q(G);CHECK
      • Refutation
        • K(g);P-FLIGHT
  • Actual
    • R(E);
    • Threat
      • R(E)+S(F),XP(i)
    • Vars
      • K(g);P-FLIGHT,P_SPINS(c)::QAR2(G)
      • K(g);P-FLIGHT,P_SPINP(i)::R(E)+S(F),XP(i)
      • K(g);S_FLIGHT::QAB1(G)
      • P(j);OGATE,P_SPINP(j),XS(F)::QAR1(G),XP(j)
      • S(c);::R(E)+S(F),XS(c)
      • P(i);SBLOCK::R(E)+S(F)
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