MESON Chess Problem Database

Problem Display
PID: 151775 (1R6/p3K3/q2pN1p1/N2k4/p4P2/P6p/7P/1Q1B2n1 w - - 0 1)

Berry, Charles Vincent E

Hampstead and Highgate Express, 1897

(First published on Sat Aug 28 1897)

1R6/p3K3/q2pN1p1/N2k4/p4P2/P6p/7P/1Q1B2n1

#2

9 + 8

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Qb7#
    • 1...Qe2
      • 2.Qb7#
    • 1...Qd3
      • 2.Qxd3#
      • 2.Qb7#
    • 1...Qb5
      • 2.Rxb5#
    • 1...Qb7+
      • 2.Qxb7#
    • 1...Qc8
      • 2.Qd3#
    • 1...Qc6
      • 2.Qd3#
    • 1...Sf3
      • 2.Bxf3#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Sc7+?
      • 1...Kc5
        • 2.Qb4#
      • 1...Kd4!
    • 1.Bb3+?
      • 1...Qc4
        • 2.Bxc4#
        • 2.Rb5#
        • 2.Qd3#
      • 1...axb3!
    • 1.Qa2+?
      • 1...Qc4
        • 2.Qxc4#
      • 1...Ke4!
    • 1.Qb4?
      • threat
        • 2.Sc7#
        • 2.Qd4#
      • 1...Qb7+
        • 2.Qxb7#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Qe2
        • 2.Qd4#
        • 2.Qb7#
      • 1...Qd3
        • 2.Sc7#
        • 2.Qb7#
      • 1...Qc8
        • 2.Qd4#
      • 1...Qb6
        • 2.Qc4#
      • 1...Qc6
        • 2.Qd4#
      • 1...Se2
        • 2.Sc7#
      • 1...Sf3
        • 2.Sc7#
        • 2.Bxf3#
      • 1...Qxa5!
    • 1.Qb7+?
      • 1...Qc6
        • 2.Qxc6#
      • 1...Qxb7+!
  • Keys
    • 1.Be2!
      • 1...Qb7+
        • 2.Qxb7#
      • 1...Qxe2
        • 2.Qb7#
      • 1...Qxa5
        • 2.Qb7#
      • 1...Sxe2
        • 2.Qh1#
      • 1...Qd3
        • 2.Qxd3#
        • 2.Qb7#
      • 1...Qc4
        • 2.Bxc4#
      • 1...Qb5
        • 2.Rxb5#
      • 1...Qc8
        • 2.Qd3#
      • 1...Qb6
        • 2.Bc4#
      • 1...Qc6
        • 2.Qd3#
      • 1...Sf3
        • 2.Bxf3#
      • 1...g5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(e);N_GUARD::QAB(A)
    • Q(e);N_GUARD,P_PINS(G)::QAB(A)
    • Q(e);N_GUARD::R(I),XQ(e)
    • Q(e);CHECK,N_GUARD::QAB(A),XQ(e)
    • Q(e);N_GUARD::QAR2(A)
    • S(a);N_GUARD::B(B),XS(a)
    • P(g);N_GUARD::QAR2(A)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • B(B);CHECK
      • Refutation
        • P(c);XB(B)
    • Try
      • Q(A);CHECK
      • Vars
        • Q(e);N_GUARD,P_SPINQ(e)::QAB1(A),XQ(e)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);CHECK,N_GUARD::QAB(A),XQ(e)
        • Q(e);N_GUARD::QAB1(A),XQ(e)
        • Q(e);::QAR1(A)
        • Q(e);N_GUARD::QAB1(A)
        • S(a);::S(G)
      • Refutation
        • Q(e);XS(F)
    • Try
      • Q(A);CHECK
      • Vars
        • Q(e);N_GUARD,P_SPINQ(e)::QAB1(A),XQ(e)
      • Refutation
        • Q(e);CHECK,XQ(A)
  • Actual
    • B(B);
    • Vars
      • Q(e);CHECK,N_GUARD::QAB(A),XQ(e)
      • Q(e);N_GUARD,P_PINS(G),XB(B)::QAB(A)
      • Q(e);N_GUARD,XS(F)::QAB(A)
      • S(a);OGATE,XB(B)::QAB(A)
      • Q(e);N_GUARD::B(B),XQ(e)
      • Q(e);N_GUARD::R(I),XQ(e)
      • Q(e);N_GUARD::QAR2(A)
      • Q(e);N_GUARD::B(B)
      • S(a);N_GUARD::B(B),XS(a)
      • P(g);N_GUARD::QAR2(A)
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