MESON Chess Problem Database

Problem Display
PID: 6358 (1r4B1/2NN4/r4pp1/5k1p/7R/b4p2/1n2P3/1b4QK w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

1st Prize, Zadachi i Etyudi, 1928

1r4B1/2NN4/r4pp1/5k1p/7R/b4p2/1n2P3/1b4QK

#2

7 + 10

3098 FIDE Album (1914-1944) (I) 1971
2988 Izbrannie Kompozitsi 1985

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Be6#
    • 1...Ra5
      • 2.Be6#
    • 1...Re6
      • 2.Bxe6#
    • 1...Ra7
      • 2.Be6#
    • 1...Raa8
      • 2.Be6#
    • 1...Rb4
      • 2.Qc5#
    • 1...Ba2
      • 2.e4#
    • 1...Bc5
      • 2.Qxc5#
    • 1...Bd6
      • 2.Be6#
    • 1...Sd3
      • 2.e4#
    • 1...g5
      • 2.Bh7#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Qf4#
      • 1...g5
        • 2.Bh7#
      • 1...Ra4
        • 2.Be6#
      • 1...Rb4
        • 2.Qc5#
      • 1...Bd6
        • 2.Be6#
      • 1...Sd3!
    • 1.Qg3?
      • threat
        • 2.Rf4#
        • 2.Qf4#
      • 1...g5
        • 2.Bh7#
      • 1...Sd3
        • 2.e4#
      • 1...Ra4
        • 2.Be6#
      • 1...Bd6
        • 2.Be6#
      • 1...Rb4!
    • 1.e3?
      • threat
        • 2.Rf4#
      • 1...g5
        • 2.Bh7#
      • 1...Sd3
        • 2.e4#
      • 1...Ra4
        • 2.Be6#
      • 1...Bd6
        • 2.Be6#
      • 1...Rb4!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qf4#
      • 1...g5
        • 2.Bh7#
      • 1...Sd3
        • 2.e4#
      • 1...Ra4
        • 2.Be6#
      • 1...Rb4
        • 2.Qc5#
      • 1...Bd6
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • R(g);N_GUARD::B(G)
    • R(g);N_GUARD::B(G),XR(g)
    • R(j);S_CUTB(c)::QAR(A)
    • B(a);N_GUARD::P(C)
    • B(c);N_GUARD::QAR(A),XB(c)
    • B(c);S_CUTR(g)::B(G)
    • S(b);S_CUTB(a)::P(C)
    • P(i);OGATEB::B(G)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • P(i);OGATEB::B(G)
        • R(g);N_GUARD::B(G)
        • R(j);S_CUTB(c)::QAR(A)
        • B(c);S_CUTR(g)::B(G)
      • Refutation
        • S(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(i);OGATEB::B(G)
        • S(b);S_CUTB(a)::P(C)
        • R(g);N_GUARD::B(G)
        • B(c);S_CUTR(g)::B(G)
      • Refutation
        • R(j);
    • Try
      • P(C);
      • Threat
        • R1(D)
      • Vars
        • P(i);OGATEB::B(G)
        • S(b);S_CUTB(a)::P(C)
        • R(g);N_GUARD::B(G)
        • B(c);S_CUTR(g)::B(G)
      • Refutation
        • R(j);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • P(i);OGATEB::B(G)
      • S(b);S_CUTB(a)::P(C)
      • R(g);N_GUARD::B(G)
      • R(j);S_CUTB(c)::QAR(A)
      • B(c);S_CUTR(g)::B(G)
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