MESON Chess Problem Database

Problem Display
PID: 53288 (1B1N4/1n2P3/b1R1p3/1kn1P3/8/Q2pKB2/3P4/8 w - - 0 1)

Slesarenko, Anatoly Vasilevich

1/3 Place=, Match: Vostok - Zapad (Shakhmatnaya kompozitsiya), 2000

1B1N4/1n2P3/b1R1p3/1kn1P3/8/Q2pKB2/3P4/8

#2

9 + 6

23 Die Schwalbe 2004
5454 Near Snap 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qa4#
  • Tries
    • 1.Bd1?
      • 1...Kc4
        • 2.Qb3#
      • 1...Sxd8
        • 2.Qxc5#
      • 1...Sa4
        • 2.Qxa4#
      • 1...Se4
        • 2.Qa4#
      • 1...Sd7
        • 2.Qa4#
      • 1...Sa5
        • 2.Qxc5#
      • 1...Sd6
        • 2.Qxc5#
      • 1...Sb3!
    • 1.Rb6+?
      • 1...Kc4
        • 2.Rb4#
        • 2.Qc1#
        • 2.Qb4#
        • 2.Qc3#
      • 1...Kxb6!
    • 1.Qxc5+?
      • 1...Ka4
        • 2.Bd1#
      • 1...Sxc5!
    • 1.Qb3+?
      • 1...Ka5
        • 2.Bc7#
      • 1...Sxb3!
    • 1.Qxa6+?
      • 1...Kb4
        • 2.Rb6#
      • 1...Sxa6!
    • 1.e8S?
      • 1...Kc4
        • 2.Qa4#
      • 1...Sxd8
        • 2.Sd6#
      • 1...Sb3
        • 2.Sc7#
      • 1...Se4
        • 2.Sc7#
      • 1...Sd7
        • 2.Sc7#
      • 1...Sa5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sa4!
  • Keys
    • 1.Bc7!
      • 1...Kc4
        • 2.Qa4#
      • 1...Sxd8
        • 2.Rxc5#
      • 1...Sb3
        • 2.Qxb3#
      • 1...Sa4
        • 2.Qb3#
      • 1...Se4
        • 2.Qb3#
      • 1...Sd7
        • 2.Qb3#
      • 1...Sa5
        • 2.Rxc5#
      • 1...Sd6
        • 2.Rxc5#

This anticipates 161885(2009)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINS(c),S_FLIGHT::QAR2(B)
  • Tries
    • Try
      • B(D);
      • Vars
        • K(b);P_SPINS(c),S_FLIGHT::QAB1(B)
        • S(f);N_GUARD,XS(I)::QAR1(B),XS(c)
        • S(c);N_GUARD::QAB1(B),XS(c)
        • S(c);N_GUARD::QAB1(B)
        • S(f);N_GUARD,SBLOCK::QAR1(B),XS(c)
        • S(f);N_GUARD::QAR1(B),XS(c)
      • Refutation
        • S(c);
    • Try
      • R(F);CHECK
      • Refutation
        • K(b);P-FLIGHT,XR(F)
    • Try
      • Q(B);CHECK,XS(c)
      • Vars
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • S(f);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::B(H)
      • Refutation
        • S(c);XQ(B)
    • Try
      • Q(B);CHECK,XB(d)
      • Vars
        • K(b);P-FLIGHT::R(F)
      • Refutation
        • S(c);XQ(B)
    • Try
      • P(G);
      • Vars
        • K(b);P_SPINS(c),S_FLIGHT::QAR2(B)
        • S(f);N_GUARD,XS(I)::S(G)
        • S(c);::S(G)
        • S(f);N_GUARD::S(G)
        • S(f);N_GUARD::S(G),XS(f)
      • Refutation
        • S(c);
  • Actual
    • B(H);
    • Vars
      • K(b);P_SPINS(c),S_FLIGHT::QAR2(B)
      • S(f);N_GUARD,XS(I)::R1(F),XS(c)
      • S(c);N_GUARD::QAR2(B),XS(c)
      • S(c);N_GUARD::QAR2(B)
      • S(f);N_GUARD::R1(F),XS(c)
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