MESON Chess Problem Database

Problem Display
PID: 81837 (4K2B/6R1/2B2Q2/2ppn2p/1N1kqR2/N3r2r/2PP1P2/8 w - - 0 1)

Ferron de la Fuente, Ernesto

The Problemist, 2008

4K2B/6R1/2B2Q2/2ppn2p/1N1kqR2/N3r2r/2PP1P2/8

#2

11 + 8

136 Problem Observer 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.fxe3#
    • 1...Rh2
      • 2.fxe3#
    • 1...Rh4
      • 2.fxe3#
  • Tries
    • 1.Bb5?
      • threat
        • 2.Sc6#
      • 1...cxb4
        • 2.Qb6#
      • 1...c4
        • 2.Qb6#
      • 1...Qxf4!
    • 1.Bxd5?
      • threat
        • 2.Sb5#
      • 1...Rxa3
        • 2.Rxe4#
      • 1...c4
        • 2.Qb6#
      • 1...cxb4!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxd5#
      • 1...Sxc6
        • 2.Sxc6#
      • 1...Sd3
        • 2.c3#
      • 1...Sf3
        • 2.fxe3#
      • 1...Sc4
        • 2.Sb5#
      • 1...Sg4
        • 2.Rgxg4#
      • 1...Sg6
        • 2.Rxg6#
      • 1...Sd7
        • 2.Rxd7#
      • 1...Sf7
        • 2.Rgxf7#

This is after

After D M Kapralos.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 3
  • Sets
    • R(b);N_GUARD::P(C),XR(a)
  • Tries
    • Try
      • B(G);
      • Threat
        • S(E)
      • Vars
        • P(e);OGATEB,XS(E)::QAB(H)
        • P(e);OGATEB::QAB(H)
      • Refutation
        • Q(d);N_SPINQ(d),XR(F)
    • Try
      • B(G);XP(f)
      • Threat
        • S(D)
      • Vars
        • R(a);N_GUARD,XS(D)::R1(F),XQ(d)
        • P(e);OGATEB::QAB(H)
      • Refutation
        • P(e);XS(E)
  • Actual
    • Q(H);N_PINS(g)
    • Threat
      • QAR1(H),XP(f)
    • Vars
      • S(g);P_PINQ(H),XB(G)::S(E),XS(g)
      • S(g);P_PINQ(H),S_CUTR(a)::P(A)
      • S(g);P_PINQ(H),S_CUTR(b)::P(C),XR(a)
      • S(g);P_PINQ(H),SBLOCK::S(D)
      • S(g);OGATEB,P_PINQ(H)::B(K)+R(I),XS(g)
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