MESON Chess Problem Database

Problem Display
PID: 141266 (b3RKQ1/3p2p1/3PPp2/r4NB1/2pPkNB1/1r2P3/6Pp/3R4 w - - 0 1)

Chepizhni, Viktor Ivanovich

Slesarenko, Anatoly Vasilevich

1st HM., Pushkin-200 JT, 1999

b3RKQ1/3p2p1/3PPp2/r4NB1/2pPkNB1/1r2P3/6Pp/3R4

#2

13 + 9

8106 Chepizhni JT 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.exd7#
    • 1...Ra2
      • 2.exd7#
    • 1...Ra3
      • 2.exd7#
    • 1...Ra4
      • 2.exd7#
    • 1...Ra6
      • 2.exd7#
    • 1...Ra7
      • 2.exd7#
  • Tries
    • 1.Re1?
      • threat
        • 2.Sg3#
      • 1...Rxe3
        • 2.Rxe3#
      • 1...Rxf5
        • 2.Bf3#
      • 1...h1S!
    • 1.Qh7?
      • threat
        • 2.Bf3#
      • 1...Rxe3
        • 2.Sg3#
      • 1...Rxf5
        • 2.exd7#
      • 1...g6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.exd7#
      • 1...Kxd5
        • 2.Bf3#
      • 1...Rxd5
        • 2.Sg3#
      • 1...Bxd5
        • 2.Sg3#
      • 1...dxe6
        • 2.Qxe6#
      • 1...Rb8
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • R(e);N_GUARD::R(K)+P(J),XP(g)
  • Tries
    • Try
      • R(A);
      • Threat
        • S(G)
      • Vars
        • R(b);OGATE,P_SPINR(b),XP(C)::R1(A),XR(b)
        • R(e);SBLOCK,XS(G)::B(F)
      • Refutation
        • P(a);
    • Try
      • Q(M);
      • Threat
        • B(F)
      • Vars
        • R(b);SBLOCK,XP(C)::QAB(M)+S(G),DCHECK
        • R(e);N_GUARD,P_SPINR(e),XS(G)::R(K)+P(J),XP(g)
      • Refutation
        • P(h);
  • Actual
    • S(E);
    • Threat
      • R(K)+P(J),XP(g)
    • Vars
      • K(d);S_FLIGHT,XS(E)::B(F)
      • R(e);SBLOCK,XS(E)::S(G)
      • B(i);SBLOCK,XS(E)::S(G)
      • P(g);OGATE,P_SPINP(g),XP(J)::QAR2(M),XP(g)
      • R(b);N_GUARD,P_PINR(K)::S(E)
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