MESON Chess Problem Database

Problem Display
PID: 117095 (3RB3/2p5/p1P2Kp1/Pnk1N1p1/Q1Pp1p2/6qr/4PN2/b4r1b w - - 0 1)

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

Vecherni Leningrad, 1981

3RB3/2p5/p1P2Kp1/Pnk1N1p1/Q1Pp1p2/6qr/4PN2/b4r1b

#2

10 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3
      • 2.Sfd3#
      • 2.Sed3#
    • 1...Be4
      • 2.Sxe4#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Sc3
      • 2.Qa3#
    • 1...Sd6
      • 2.Sd7#
    • 1...f3
      • 2.Sfd3#
      • 2.Se4#
      • 2.Sed3#
      • 2.Rd5#
  • Keys
    • 1.e4!
      • threat
        • 2.Rd5#
      • 1...Bxe4
        • 2.Sxe4#
      • 1...dxe4 ep
        • 2.Sd3#
      • 1...fxe4 ep
        • 2.Sd3#
      • 1...Sc3
        • 2.Qa3#
      • 1...Sd6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(c);N_GUARD::S(B),XB(c)
    • B(c);N_GUARD::R1(I),XB(c)
    • S(h);N_GUARD,S_CUTQ(d)::QAB(C)
    • S(h);SBLOCK::S(F)
  • Actual
    • P(A);
    • Threat
      • R1(I)
    • Vars
      • B(c);XP(A)::S(B),XB(c)
      • P(f);EP,P_PINS(F),S_CUTQ(d),XP(A)::S(B)
      • P(g);EP,P_PINS(B),S_CUTQ(d),XP(A)::S(F)
      • S(h);N_GUARD,S_CUTQ(d)::QAB(C)
      • S(h);SBLOCK::S(F)
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