MESON Chess Problem Database

Problem Display
PID: 144834 (3R3n/4p1r1/b2Npb2/rP2P1Q1/N2kB3/8/8/4K3 w - - 0 1)

Erlin, Konrad (AKA Erlinger, Konrad)

3/4 Prize, Budapest Chess Club, 1912

3R3n/4p1r1/b2Npb2/rP2P1Q1/N2kB3/8/8/4K3

#2

8 + 8

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5
      • 2.Qd2#
  • Tries
    • 1.Sc4+?
      • 1...Kxe4
        • 2.Sd2#
      • 1...Kxc4!
    • 1.Qe3+?
      • 1...Kxe5
        • 2.Sc4#
        • 2.Bh1#
        • 2.Bg2#
        • 2.Bf3#
        • 2.Bc6#
        • 2.Bb7#
        • 2.Ba8#
      • 1...Kxe3!
  • Keys
    • 1.Bd3!
      • threat
        • 2.Sc4#
        • 2.Se4#
        • 2.Sb7#
        • 2.Sf7#
        • 2.Sc8#
        • 2.Se8#
      • 1...Kxd3
        • 2.Qd2#
      • 1...Kd5
        • 2.Sc4#
        • 2.Se4#
        • 2.Sb7#
        • 2.Sf7#
        • 2.Sc8#
        • 2.Se8#
      • 1...Rxa4
        • 2.Se4#
      • 1...Rxb5
        • 2.Sxb5#
      • 1...Rxg5
        • 2.Sc4#
      • 1...Bxb5
        • 2.Sxb5#
      • 1...Bxe5
        • 2.Sf5#
      • 1...Bxg5
        • 2.Sc4#
      • 1...exd6
        • 2.Rxd6#
      • 1...Rf7
        • 2.Sc4#
        • 2.Se4#
        • 2.Sb7#
        • 2.Sxf7#
        • 2.Sc8#
        • 2.Se8#
      • 1...Rg8
        • 2.Se8#
      • 1...Bb7
        • 2.Sxb7#
      • 1...Bc8
        • 2.Sxc8#
      • 1...Sf7
        • 2.Sxf7#

There are these versions: 189745

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • B(e);SBLOCK,XP(E)::QAR2(F)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(C)::S(G)
      • Refutation
        • K(a);P-FLIGHT,XS(G)
    • Try
      • Q(F);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(F)
  • Actual
    • B(C);
    • Threat
      • DUALS(6)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XB(C)::QAR1(F)
      • R(b);XS(B)::R(H)+S(G)
      • R(b);XP(D)::R(H)+S(G),DCHECK,XR(b)
      • R(g);XQ(F)::R(H)+S(G)
      • B(c);XP(D)::R(H)+S(G),DCHECK,XB(c)
      • B(e);SBLOCK,XP(E)::R(H)+S(G),DCHECK
      • B(e);XQ(F)::R(H)+S(G)
      • P(f);OGATE,P_SPINP(f),XS(G)::R(H),XP(f)
      • R(g);::R(H)+S(G)
      • B(c);::R(H)+S(G),XB(c)
      • S(h);::R(H)+S(G),XS(h)
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