MESON Chess Problem Database

Problem Display
PID: 246642 (8/8/3p4/2BP2Q1/2p1k3/p3pN2/BN4P1/1K6 w - - 0 1)

Fomichev, Evgeny Vasilevich

Moscow Ty., 2014

8/8/3p4/2BP2Q1/2p1k3/p3pN2/BN4P1/1K6

#2

8 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e2
      • 2.Sd2#
    • 1...c3
      • 2.Qg4#
    • 1...dxc5
      • 2.Qe5#
  • Tries
    • 1.Ka1?
      • threat
        • 2.Bb1#
      • 1...c3
        • 2.Qg4#
      • 1...axb2+!
    • 1.Kc1?
      • threat
        • 2.Bb1#
      • 1...c3
        • 2.Qg4#
      • 1...axb2+!
    • 1.Kc2?
      • 1...dxc5
        • 2.Qe5#
      • 1...e2
        • 2.Sd2#
      • 1...c3
        • 2.Qg4#
      • 1...axb2!
    • 1.Bxc4?
      • threat
        • 2.Bd3#
        • 2.Qg4#
      • 1...axb2
        • 2.Qg4#
      • 1...a2+!
    • 1.Bxa3?
      • 1...c3
        • 2.Qg4#
      • 1...e2!
    • 1.Bxe3?
      • threat
        • 2.Sd2#
      • 1...c3
        • 2.Qf4#
      • 1...axb2!
    • 1.Bb6?
      • 1...e2
        • 2.Sd2#
      • 1...c3
        • 2.Qg4#
      • 1...axb2!
    • 1.Ba7?
      • 1...e2
        • 2.Sd2#
      • 1...c3
        • 2.Qg4#
      • 1...axb2!
    • 1.Qg6+?
      • 1...Kf4
        • 2.Bxd6#
      • 1...Kxd5!
  • Keys
    • 1.Sd3!
      • 1...Kxd3
        • 2.Qxe3#
      • 1...cxd3
        • 2.Qg4#
      • 1...dxc5
        • 2.Sxc5#
      • 1...e2
        • 2.Sf2#
      • 1...c3
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::S(E)
    • P(c);::QAR2(H)
    • P(e);N_GUARD,XB(F)::QAR1(H)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • B(B)
      • Vars
        • P(c);::QAR2(H)
      • Refutation
        • P(a);CHECK,XS(C)
    • Try
      • K(A);P-FLIGHT
      • Threat
        • B(B)
      • Vars
        • P(c);::QAR2(H)
      • Refutation
        • P(a);CHECK,XS(C)
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(e);N_GUARD,XB(F)::QAR1(H)
        • P(b);N_GUARD::S(E)
        • P(c);::QAR2(H)
      • Refutation
        • P(a);XS(C)
    • Try
      • B(B);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • P(a);XS(C)::QAR2(H)
      • Refutation
        • P(a);CHECK
    • Try
      • B(F);XP(a)
      • Vars
        • P(c);::QAR2(H)
      • Refutation
        • P(b);
    • Try
      • B(F);XP(b)
      • Threat
        • S(E)
      • Vars
        • P(c);::QAR1(H)
      • Refutation
        • P(a);XS(C)
    • Try
      • B(F);
      • Vars
        • P(b);N_GUARD::S(E)
        • P(c);::QAR2(H)
      • Refutation
        • P(a);XS(C)
    • Try
      • B(F);
      • Vars
        • P(b);N_GUARD::S(E)
        • P(c);::QAR2(H)
      • Refutation
        • P(a);XS(C)
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);P-FLIGHT::B(F),XP(e)
      • Refutation
        • K(d);P_SPINP(c),S_FLIGHT,XP(G)
  • Actual
    • S(C);
    • Vars
      • K(d);S_FLIGHT,XS(C)::QAR1(H),XP(b)
      • P(c);SBLOCK,XS(C)::QAR2(H)
      • P(e);XB(F)::S(C),XP(e)
      • P(b);N_GUARD::S(C)
      • P(c);::QAB(H)
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