MESON Chess Problem Database

Problem Display
PID: 151035 (2B2Q2/2p5/8/1r2R1p1/1p1kN3/6P1/P2P4/K3N3 w - - 0 1)

Berry, Charles Vincent E

Hampstead and Highgate Express, 1896

(First published on Sat Aug 1 1896)

2B2Q2/2p5/8/1r2R1p1/1p1kN3/6P1/P2P4/K3N3

#2

9 + 5

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Qxc5#
    • 1...Rb6
      • 2.Qc5#
    • 1...Rb7
      • 2.Qc5#
    • 1...Rb8
      • 2.Qc5#
  • Tries
    • 1.Sc2+?
      • 1...Kc4
        • 2.Qf1#
      • 1...Kxe5
        • 2.Qf5#
      • 1...Kd3!
    • 1.Sc3?
      • threat
        • 2.Re4#
      • 1...Kc4
        • 2.Re4#
      • 1...Kxe5
        • 2.Sf3#
      • 1...Rxe5
        • 2.Qxb4#
      • 1...bxc3!
    • 1.Rxb5?
      • threat
        • 2.Qxb4#
      • 1...Kc4
        • 2.Qxb4#
        • 2.Qc5#
      • 1...Kxe4
        • 2.Qxb4#
      • 1...b3
        • 2.Qb4#
      • 1...c5!
    • 1.Qd6+?
      • 1...Kc4
        • 2.Qd3#
        • 2.d3#
      • 1...Rd5
        • 2.Qxd5#
      • 1...cxd6!
    • 1.Qf2+?
      • 1...Kc4
        • 2.d3#
      • 1...Kxe5!
    • 1.Qd8+?
      • 1...Kc4
        • 2.Qd3#
        • 2.d3#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Kxe5!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Re4#
      • 1...Kc4
        • 2.Re4#
      • 1...Kxe5
        • 2.Sf3#
      • 1...Rxe5
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(c);N_GUARD::QAB1(I),XR(c)
    • R(c);N_GUARD::QAB1(I)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB(I)
        • K(b);S_FLIGHT,XR(G)::QAR1(I)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(F);
      • Threat
        • R1(G)
      • Vars
        • K(b);P-FLIGHT::R(G)
        • K(b);S_FLIGHT,XR(G)::S(B)
        • R(c);N_GUARD,SBLOCK,XR(G)::QAR2(I),XP(a)
      • Refutation
        • P(a);XS(F)
    • Try
      • R(G);XR(c)
      • Threat
        • QAR2(I),XP(a)
      • Vars
        • K(b);P-FLIGHT,XS(F)::QAR(I),XP(a)
        • P(a);::QAR2(I)
      • Refutation
        • P(e);
    • Try
      • Q(I);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAR1(I),XR(c)
      • Refutation
        • P(e);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);P-FLIGHT::P(D)
      • Refutation
        • K(b);S_FLIGHT,XR(G)
    • Try
      • Q(I);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAR1(I),XR(c)
      • Refutation
        • K(b);S_FLIGHT,XR(G)
  • Actual
    • S(F);
    • Threat
      • R1(G)
    • Vars
      • K(b);P-FLIGHT::R(G)
      • K(b);S_FLIGHT,XR(G)::S(B)
      • R(c);N_GUARD,SBLOCK,XR(G)::QAR2(I),XP(a)
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