MESON Chess Problem Database

Problem Display
PID: 146973 (5bK1/N7/1p6/B2Rp2Q/n1k3bR/2ppP3/q1P2n2/4N2B w - - 0 1)

Slesarenko, Anatoly Vasilevich

1st Place, Moscow Championship, 2010

5bK1/N7/1p6/B2Rp2Q/n1k3bR/2ppP3/q1P2n2/4N2B

#2

10 + 10

145 StrateGems 2012

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Rd4#
  • Tries
    • 1.Rd4+?
      • 1...exd4
        • 2.Qb5#
        • 2.Qd5#
      • 1...Kc5+!
    • 1.Rxe5?
      • threat
        • 2.Qf7#
      • 1...Se4
        • 2.Rxe4#
      • 1...Sc5
        • 2.Bd5#
      • 1...bxa5!
    • 1.Qf7?
      • threat
        • 2.Rb5#
        • 2.Rxe5#
      • 1...bxa5
        • 2.Rb5#
      • 1...Bc5
        • 2.Rxd3#
        • 2.Rd4#
        • 2.Rxe5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Sc5
        • 2.Rd4#
      • 1...e4
        • 2.Rf5#
      • 1...b5
        • 2.Rxb5#
        • 2.Rxe5#
      • 1...Se4!
  • Keys
    • 1.Rb5!
      • threat
        • 2.Bd5#
        • 2.Qf7#
      • 1...Sxh1
        • 2.Qf7#
        • 2.cxd3#
      • 1...Bc5
        • 2.Qf7#
      • 1...Se4
        • 2.cxd3#
      • 1...Sc5
        • 2.Rb4#
      • 1...e4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(h);N_GUARD,N_SPINB(g)::R1(G)
  • Tries
    • Try
      • R(G);CHECK,N_PINB(g)
      • Refutation
        • K(f);CHECK,P-FLIGHT,P_SPINP(h)
    • Try
      • R(G);XP(h)
      • Threat
        • QAB(H)
      • Vars
        • S(b);N_GUARD,N_SPINB(g)::R(G),XS(b)
        • S(e);SBLOCK::B(B)
      • Refutation
        • P(i);XB(F)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(i);XB(F)::QAB(H)+R(G)
        • S(e);SBLOCK::QAB(H)+R(G),DCHECK
        • P(h);N_SPINB(g),OGATE::QAB(H)+R(G)
      • Refutation
        • S(b);N_SPINB(g)
  • Actual
    • R(G);
    • Threat
      • DUALS(2)
    • Vars
      • B(j);::QAB(H)
      • S(b);N_GUARD,N_SPINB(g)::P(C),XP(d)
      • S(e);SBLOCK,S_CUTB(j)::R1(G)
      • P(h);N_SPINB(g),OGATE::QAB1(H)
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Developed and maintained by Brian Stephenson.
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