MESON Chess Problem Database

Problem Display
PID: 154483 (3K4/3Np3/2P2p2/5R2/4k1P1/2r4n/b4b2/2BQ1N2 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Zadachi i Etyudi, 1995

3K4/3Np3/2P2p2/5R2/4k1P1/2r4n/b4b2/2BQ1N2

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Qd5#
    • 1...Re3
      • 2.Sc5#
    • 1...Rc4
      • 2.Qd5#
    • 1...Bb1
      • 2.Qd5#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Be3
      • 2.Sg3#
    • 1...Sg1
      • 2.Rf4#
    • 1...Sf4
      • 2.Rxf4#
    • 1...Sg5
      • 2.Rf4#
    • 1...e5
      • 2.Sxf6#
    • 1...e6
      • 2.Sxf6#
  • Keys
    • 1.Be3!
      • threat
        • 2.Qd4#
      • 1...Rxe3
        • 2.Sc5#
      • 1...Bxe3
        • 2.Sg3#
      • 1...Rd3
        • 2.Qf3#
      • 1...Rc4
        • 2.Qd5#
      • 1...Sf4
        • 2.Rxf4#
      • 1...e5
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(c);S_CUTB(a)::QAB1(B)
    • R(c);N_GUARD,S_CUTB(b)::S(G)
    • B(a);N_GUARD::QAB1(B)
    • B(a);N_GUARD::QAB1(B),XB(a)
    • B(b);N_GUARD,S_CUTR(c)::S(C)
    • S(d);N_GUARD::R1(E)
    • S(d);N_GUARD::R1(E),XS(d)
    • P(g);N_GUARD::S(G),XP(f)
  • Actual
    • B(A);
    • Threat
      • QAR1(B)
    • Vars
      • R(c);N_GUARD,XB(A)::S(G)
      • B(b);N_GUARD,SBLOCK,XB(A)::S(C)
      • R(c);P_PINS(G),SBLOCK::QAB1(B)
      • R(c);S_CUTB(a)::QAB1(B)
      • S(d);N_GUARD::R1(E),XS(d)
      • P(g);N_GUARD::S(G),XP(f)
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Developed and maintained by Brian Stephenson.
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