MESON Chess Problem Database

Problem Display
PID: 196290 (2Q5/b4R1K/3rp3/Np2P3/1P1k4/3p1B2/n2P4/2n5 w - - 0 1)

Dean, EF

Western Daily Mercury, 1918

(First published on Fri Jun 14 1918)

2Q5/b4R1K/3rp3/Np2P3/1P1k4/3p1B2/n2P4/2n5

#2

8 + 8

15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qh8#
    • 1...Rb6
      • 2.Qc5#
    • 1...Bc5
      • 2.Qxc5#
    • 1...Bb8
      • 2.Qc5#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sxb4
      • 2.Qc3#
  • Tries
    • 1.Sb3+?
      • 1...Kxe5
        • 2.Qh8#
      • 1...Sxb3!
    • 1.Qc4+?
      • 1...Kxe5
        • 2.Qe4#
        • 2.Qf4#
      • 1...bxc4!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qxd6#
      • 1...Kxe5
        • 2.Sc6#
      • 1...Sxb4
        • 2.Qc3#
      • 1...Rd5
        • 2.Rf4#
      • 1...Ra6
        • 2.Rf4#
      • 1...Rb6
        • 2.Rf4#
        • 2.Qc5#
      • 1...Rc6
        • 2.Rf4#
      • 1...Rd7
        • 2.Rxd7#
      • 1...Rd8
        • 2.Rf4#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Bb8
        • 2.Qc5#
      • 1...Sc3
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(d);OGATEB,S_FLIGHT,XP(E)::QAB(H)
    • R(f);S_CUTB(h)::QAB1(H)
    • B(h);N_GUARD::QAB1(H),XB(h)
    • B(h);N_GUARD::QAB1(H)
    • S(b);N_GUARD::QAB1(H),XS(b)
    • S(b);N_GUARD,XP(C)::QAB1(H)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(d);S_FLIGHT,XP(E)::QAB(H)
      • Refutation
        • S(a);XS(D)
    • Try
      • Q(H);CHECK
      • Refutation
        • P(e);XQ(H)
  • Actual
    • Q(H);
    • Threat
      • QAR2(H),XR(f)
    • Vars
      • K(d);P_SPINR(f),S_FLIGHT,XP(E)::S(D)
      • S(b);N_GUARD,XP(C)::QAB1(H)
      • R(f);::R(F)
      • R(f);OGATEB,P_PINR(F)::R(F),XR(f)
      • B(h);N_GUARD::QAB1(H),XB(h)
      • B(h);N_GUARD::QAB1(H)
      • S(b);N_GUARD::QAB1(H),XS(b)
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