MESON Chess Problem Database

Problem Display
PID: 177944 (3RB3/K7/3pn2N/1Npk1np1/1PRP4/1PprbP2/4P3/8 w - - 0 1)

Kavnatsky, Isaak

4th HM., Sahs (Latvia), 1989

3RB3/K7/3pn2N/1Npk1np1/1PRP4/1PprbP2/4P3/8

#2

11 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sxc3#
    • 1...Rd2
      • 2.Sxc3#
    • 1...Bc1
      • 2.e4#
    • 1...Bg1
      • 2.e4#
    • 1...Bd2
      • 2.e4#
    • 1...Bf2
      • 2.e4#
    • 1...Bf4
      • 2.e4#
    • 1...Sg3
      • 2.Rxd6#
    • 1...Sh4
      • 2.Rxd6#
    • 1...Sxh6
      • 2.Rxd6#
    • 1...Se7
      • 2.Rxd6#
    • 1...Sfg7
      • 2.Rxd6#
    • 1...Sf4
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
    • 1...Seg7
      • 2.Sc7#
    • 1...Sxd8
      • 2.Sc7#
    • 1...Sf8
      • 2.Sc7#
    • 1...cxb4
      • 2.Bc6#
  • Keys
    • 1.Sg4!
      • threat
        • 2.Sf6#
      • 1...Rxd4
        • 2.Sxc3#
      • 1...Bxd4
        • 2.e4#
      • 1...Sfxd4
        • 2.Rxd6#
      • 1...Sexd4
        • 2.Sc7#
      • 1...Sxd8
        • 2.Sc7#
      • 1...cxd4
        • 2.Bc6#
      • 1...Sf4
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Seg7
        • 2.Sc7#
      • 1...Sf8
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 13
  • Sets
    • R(b);N_GUARD::S(G),XP(a)
    • B(c);OGATE::P(A)
    • S(f);N_GUARD::R1(J),XP(h)
    • S(f);N_GUARD,XS(H)::R1(J),XP(h)
    • S(i);N_GUARD::S(G)
    • S(i);N_GUARD::S(G),XS(i)
    • S(i);N_GUARD,N_SPINP(h),XR(J)::S(G)
    • P(d);P_PINP(F),XP(D)::B(K)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • R(b);N_GUARD,XP(F)::S(G),XP(a)
      • B(c);OGATE,XP(F)::P(A)
      • S(f);N_GUARD,XP(F)::R1(J),XP(h)
      • S(i);N_GUARD,XP(F)::S(G)
      • S(i);N_GUARD,N_SPINP(h),XR(J)::S(G)
      • P(d);XP(F)::B(K)
      • S(i);N_GUARD::S(G)
      • S(i);N_GUARD::S(G),XS(i)
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