MESON Chess Problem Database

Problem Display
PID: 219424 (4n3/1R3N2/2BP4/p1kP4/b2R4/n1BP1K2/3pQb2/2N5 w - - 0 1)

Gockel, Hubert

Freie Presse, 1999

4n3/1R3N2/2BP4/p1kP4/b2R4/n1BP1K2/3pQb2/2N5

#2

11 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bb3
      • 2.Sxb3#
    • 1...Bb5
      • 2.Sb3#
    • 1...Bxc6
      • 2.Sb3#
    • 1...Sb1
      • 2.Rc4#
    • 1...Sc2
      • 2.Rc4#
    • 1...Sc4
      • 2.Rxc4#
    • 1...Sb5
      • 2.Rc4#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Se4#
      • 1...Kxd6
        • 2.Qe7#
      • 1...Sxd6
        • 2.Se6#
      • 1...Sf6!
    • 1.Bb4+?
      • 1...Kxd4
        • 2.Qxf2#
        • 2.Qe4#
        • 2.Qe5#
      • 1...axb4!
  • Keys
    • 1.Bxa5!
      • threat
        • 2.Bb6#
      • 1...Kxd4
        • 2.Qxf2#
      • 1...Bxd4
        • 2.Bb4#
      • 1...Bxc6
        • 2.Sb3#
      • 1...Sc4
        • 2.Rxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(d);N_GUARD::S(A),XB(d)
    • B(d);N_GUARD::S(A)
    • B(d);N_GUARD,P_PINP(G),XB(H)::S(A)
    • S(c);N_GUARD::R1(F)
    • S(c);N_GUARD::R1(F),XS(c)
  • Tries
    • Try
      • S(K);
      • Threat
        • S(K)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XP(I)::QAB1(B)
        • S(g);SBLOCK,XP(I)::S(K)
      • Refutation
        • S(g);
    • Try
      • B(C);CHECK
      • Refutation
        • P(e);XB(C)
  • Actual
    • B(C);XP(e)
    • Threat
      • B(C)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XR(F)::QAB(B),XB(b)
      • B(b);SBLOCK,XR(F)::B(C)
      • B(d);N_GUARD,P_PINP(G),XB(H)::S(A)
      • S(c);N_GUARD::R1(F),XS(c)
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