MESON Chess Problem Database

Problem Display
PID: 151803 (b1n4Q/R3P3/r7/pPBkNp2/2p5/3Nnp2/B6p/2K1R1b1 w - - 0 1)

Slesarenko, Anatoly Vasilevich

Sp. HM., Shakhmatnaya kompozitsiya, 2000

b1n4Q/R3P3/r7/pPBkNp2/2p5/3Nnp2/B6p/2K1R1b1

#2

10 + 11

56 The Problemist 2013
136 Problem Observer 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Sf4#
    • 1...Sd1
      • 2.Bxc4#
    • 1...Sf1
      • 2.Bxc4#
    • 1...Sc2
      • 2.Bxc4#
    • 1...Sg2
      • 2.Bxc4#
    • 1...Sg4
      • 2.Bxc4#
  • Tries
    • 1.Sd7?
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qd4#
      • 1...Ke6
        • 2.Qg8#
      • 1...Re6
        • 2.Qd4#
      • 1...Sg4
        • 2.Sf4#
      • 1...Rf6!
    • 1.Qg8+?
      • 1...Ke4
        • 2.Qxc4#
      • 1...Re6!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qd4#
      • 1...Ke6
        • 2.Bxc4#
      • 1...Sg4
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(g);S_FLIGHT::S(D)
    • S(c);N_GUARD::B(C),XP(e)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAR1(J)
      • Vars
        • K(g);N_SPINP(e),P_SPINS(c),S_FLIGHT::QAR1(J)
        • K(g);P_SPINS(c),S_FLIGHT::QAB(J)
        • R(i);SBLOCK::QAR1(J)
        • S(c);::S(D)
      • Refutation
        • R(i);
    • Try
      • Q(J);CHECK
      • Vars
        • K(g);N_SPINP(e),OGATE,P_SPINS(c),S_FLIGHT::QAR2(J),XP(e)
      • Refutation
        • R(i);P_SPINR(i)
  • Actual
    • S(G);
    • Threat
      • QAR1(J)
    • Vars
      • K(g);N_SPINP(e),P_SPINS(c),S_FLIGHT::QAR1(J)
      • K(g);P_SPINS(c),S_FLIGHT::B(C),XP(e)
      • S(c);::QAB(J)
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