MESON Chess Problem Database

Problem Display
PID: 151715 (2Q5/2P2b2/Rrn1p3/2k1P3/Rp1p1NP1/1PN4K/2p1p3/3q1n1B w - - 0 1)

Desanges, L

Hampstead and Highgate Express, 1897

(First published on Sat May 15 1897)

2Q5/2P2b2/Rrn1p3/2k1P3/Rp1p1NP1/1PN4K/2p1p3/3q1n1B

#2

11 + 11

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sd3#
    • 1...Qb1
      • 2.Sd3#
    • 1...Qc1
      • 2.Sd3#
    • 1...Qe1
      • 2.Sd3#
    • 1...Qd3+
      • 2.Sxd3#
    • 1...Rb5
      • 2.Se4#
      • 2.Rxc6#
    • 1...Rb7
      • 2.Rxc6#
    • 1...Rb8
      • 2.Rxc6#
    • 1...Bh5
      • 2.Sxe6#
    • 1...Bg6
      • 2.Sxe6#
    • 1...Be8
      • 2.Sxe6#
    • 1...Sd2
      • 2.Sd3#
  • Tries
    • 1.R4a5+?
      • 1...Rb5
        • 2.Sa4#
        • 2.Se4#
        • 2.Rxb5#
        • 2.Rxc6#
      • 1...Sxa5!
    • 1.R6a5+?
      • 1...Rb5
        • 2.Rxb5#
      • 1...Sxa5!
    • 1.Qb8?
      • threat
        • 2.Qxb6#
      • 1...Qd3+
        • 2.Sxd3#
      • 1...Rxa6
        • 2.Se4#
        • 2.Qb5#
      • 1...Rxb8
        • 2.Rxc6#
      • 1...Rb5
        • 2.Se4#
        • 2.Rxc6#
        • 2.Qxb5#
      • 1...Rb7
        • 2.Rxc6#
      • 1...Sxb8!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qxb6#
      • 1...Qd3+
        • 2.Sxd3#
      • 1...Rxa6
        • 2.Se4#
        • 2.Qb5#
      • 1...Rxb7
        • 2.Rxc6#
      • 1...Rb5
        • 2.Se4#
        • 2.Rxc6#
        • 2.Qxc6#
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 9
  • Sets
    • Q(a);N_GUARD::S(F)
    • Q(a);CHECK,N_GUARD::S(F),XQ(a)
    • R(h);OGATE::R1(I),XS(i)
    • B(k);N_GUARD::S(F),XP(j)
    • S(b);S_CUTQ(a)::S(F)
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • S(i);XR(E)
    • Try
      • R(I);CHECK
      • Vars
        • R(h);N_GUARD,P_SPINR(h)::R1(I),XR(h)
      • Refutation
        • S(i);XR(I)
    • Try
      • Q(K);
      • Threat
        • QAB1(K),XR(h)
      • Vars
        • Q(a);CHECK,N_GUARD::S(F),XQ(a)
        • R(h);OGATE,XQ(K)::R1(I),XS(i)
        • R(h);OGATE::R1(I),XS(i)
      • Refutation
        • S(i);XQ(K)
  • Actual
    • Q(K);
    • Threat
      • QAB1(K),XR(h)
    • Vars
      • Q(a);CHECK,N_GUARD::S(F),XQ(a)
      • R(h);OGATE,XQ(K)::R1(I),XS(i)
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