MESON Chess Problem Database

Problem Display
PID: 142013 (r3k2r/1R1ppp2/3P1B2/8/4Bp2/2Q5/6Rp/n6K w kq - 0 1)

Chepizhni, Viktor Ivanovich

1st Prize=, Odessa Festival, 1984

r3k2r/1R1ppp2/3P1B2/8/4Bp2/2Q5/6Rp/n6K

#2

7 + 9

6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Rb8#
      • 2.Qc8#
    • 1...Ra3
      • 2.Rb8#
      • 2.Qc8#
    • 1...Ra4
      • 2.Rb8#
      • 2.Qc8#
    • 1...Ra5
      • 2.Rb8#
      • 2.Qc8#
    • 1...Ra6
      • 2.Rb8#
      • 2.Qc8#
    • 1...Ra7
      • 2.Rb8#
      • 2.Qc8#
    • 1...Rb8
      • 2.Rxb8#
    • 1...Rc8
      • 2.Qxc8#
    • 1...Rh3
      • 2.Rg8#
    • 1...Rh4
      • 2.Rg8#
    • 1...Rh5
      • 2.Rg8#
    • 1...Rh6
      • 2.Rg8#
    • 1...Rh7
      • 2.Rg8#
    • 1...Rg8
      • 2.Rxg8#
  • Tries
    • 1.Ra2?
      • threat
        • 2.Rxa8#
      • 1...Kd8
        • 2.Rxa8#
      • 1...Kf8
        • 2.Rxa8#
      • 1...0-0
        • 2.Rg2#
      • 1...Rxa2
        • 2.Rb8#
        • 2.Qc8#
      • 1...Ra3
        • 2.Rb8#
        • 2.Qc8#
      • 1...Ra4
        • 2.Rb8#
        • 2.Qc8#
      • 1...Ra5
        • 2.Rb8#
        • 2.Qc8#
      • 1...Ra6
        • 2.Rb8#
        • 2.Qc8#
      • 1...Ra7
        • 2.Rb8#
        • 2.Qc8#
      • 1...Rb8
        • 2.Rxb8#
      • 1...Rc8
        • 2.Qxc8#
      • 1...Rd8!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qxh8#
      • 1...Kd8
        • 2.Qxd7#
        • 2.Qxh8#
      • 1...Kf8
        • 2.Qxh8#
      • 1...0-0-0
        • 2.Qc3#
      • 1...Rxh3
        • 2.Rg8#
      • 1...Rh4
        • 2.Rg8#
      • 1...Rh5
        • 2.Rg8#
      • 1...Rh6
        • 2.Rg8#
      • 1...Rh7
        • 2.Rg8#
      • 1...Rf8
        • 2.Qxd7#
      • 1...Rg8
        • 2.Rxg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(g);N_GUARD::R(G),XR(g)
    • R(g);N_GUARD::QAR2(C),XR(g)
    • R(i);N_GUARD::R(B)
    • R(i);N_GUARD::R(B),XR(i)
  • Tries
    • Try
      • R(B);
      • Threat
        • R(B),XR(g)
      • Vars
        • K(h);P-FLIGHT,P_SPINP(e)::R(B),XR(g)
        • K(h);P-FLIGHT::R(B),XR(g)
        • K(h);0-0,OGATEB::R(B)
        • R(g);N_GUARD::R(G),XR(g)
        • R(g);N_GUARD::QAR2(C),XR(g)
      • Refutation
        • R(g);
  • Actual
    • Q(C);
    • Threat
      • QAR(C),XR(i)
    • Vars
      • K(h);P-FLIGHT::QAR2(C),XR(i)
      • K(h);0-0-0,OGATEB,P_SPINP(d)::QAR(C)
      • R(i);N_GUARD,XQ(C)::R(B)
      • R(i);N_GUARD::R(B)
      • R(i);SBLOCK::QAB1(C),XP(d)
      • R(i);N_GUARD::R(B),XR(i)
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