MESON Chess Problem Database

Problem Display
PID: 203402 (1b4RB/4n3/qp6/5p1K/3Ppk2/R1N4p/3p1p2/3B4 w - - 0 1)

Eschauzier, D

De Wereldkroniek, 1924

1b4RB/4n3/qp6/5p1K/3Ppk2/R1N4p/3p1p2/3B4

#2

7 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Sd5#
    • 1...Qe2+
      • 2.Sxe2#
    • 1...Qb7
      • 2.Se2#
    • 1...Qc8
      • 2.Se2#
    • 1...Qa4
      • 2.Se2#
    • 1...Qa5
      • 2.Se2#
    • 1...Qa7
      • 2.Se2#
    • 1...Qa8
      • 2.Se2#
    • 1...Sd5
      • 2.Sxd5#
    • 1...Sc6
      • 2.Sd5#
    • 1...Sg6
      • 2.Sd5#
    • 1...Sc8
      • 2.Sd5#
    • 1...Sxg8
      • 2.Sd5#
    • 1...b5
      • 2.Se2#
  • Tries
    • 1.Be5+?
      • 1...Ke3
        • 2.Sd5#
        • 2.Rg3#
      • 1...Bxe5!
    • 1.Rg4+?
      • 1...Ke3
        • 2.Sd5#
      • 1...fxg4!
  • Keys
    • 1.Bg7!
      • threat
        • 2.Bh6#
      • 1...Qe2+
        • 2.Sxe2#
      • 1...Ke3
        • 2.Sd5#
      • 1...Kg3
        • 2.Be5#
      • 1...Sxg8
        • 2.Sd5#
      • 1...Sg6
        • 2.Sd5#
      • 1...b5
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • K(e);S_FLIGHT::R(B)+S(C),DCHECK
    • Q(g);CHECK,N_GUARD::S(C),XQ(g)
    • Q(g);N_GUARD::S(C)
    • S(i);N_GUARD::S(C),XS(i)
    • S(i);N_GUARD::S(C)
    • S(i);N_GUARD,XR(F)::S(C)
    • P(h);S_CUTQ(g)::S(C)
  • Tries
    • Try
      • B(G);CHECK
      • Refutation
        • B(j);XB(G)
    • Try
      • R(F);CHECK
      • Vars
        • K(e);S_FLIGHT::R(B)+S(C),DCHECK
      • Refutation
        • P(f);XR(F)
  • Actual
    • B(G);
    • Threat
      • B(G)
    • Vars
      • Q(g);CHECK,N_GUARD::S(C),XQ(g)
      • K(e);S_FLIGHT::R(B)+S(C),DCHECK
      • K(e);S_FLIGHT::R(F)+B(G),DCHECK
      • S(i);N_GUARD,XR(F)::S(C)
      • S(i);N_GUARD::S(C)
      • P(h);S_CUTQ(g)::S(C)
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