MESON Chess Problem Database

Problem Display
PID: 234970 (8/2N5/7Q/8/K2kP3/1B4P1/1P1N4/8 w - - 0 1)

Akimov, Nikolai Nikolaevich

64 Shakhmatnoe obozrenie, 2008

8/2N5/7Q/8/K2kP3/1B4P1/1P1N4/8

#2

8 + 1

5454 Near Snap 2021
15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qe3#
      • 1...Kd3
        • 2.Qe3#
      • 1...Kc5
        • 2.Qb6#
        • 2.Qd6#
      • 1...Kxe4!
    • 1.Sb5+?
      • 1...Kc5
        • 2.Qd6#
      • 1...Ke5
        • 2.Qf4#
        • 2.Qg5#
        • 2.Qg7#
        • 2.Qd6#
        • 2.Qe6#
        • 2.Qh8#
      • 1...Kd3!
    • 1.Se6+?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kd3!
    • 1.Se8?
      • 1...Kc5
        • 2.Qd6#
      • 1...Ke5
        • 2.Qg7#
        • 2.Qd6#
        • 2.Qf6#
        • 2.Qh8#
      • 1...Kd3!
    • 1.Bc2?
      • 1...Ke5
        • 2.Sf3#
      • 1...Kc5!
    • 1.Bd5?
      • 1...Kc5
        • 2.Sb3#
      • 1...Ke5
        • 2.Sf3#
      • 1...Kd3!
    • 1.e5?
      • 1...Kc5
        • 2.Qd6#
      • 1...Kxe5
        • 2.Qf4#
      • 1...Kd3!
  • Keys
    • 1.Sd5!
      • 1...Kd3
        • 2.Qe3#
      • 1...Kc5
        • 2.Qb6#
      • 1...Ke5
        • 2.Qf6#

Anticipated by 178214(2005)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(G)
      • Vars
        • K(a);P-FLIGHT::QAR1(G)
      • Refutation
        • K(a);P-FLIGHT,XP(F)
    • Try
      • S(H);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(H);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(H);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(F);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
        • K(a);S_FLIGHT,XP(F)::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(H);
    • Vars
      • K(a);P-FLIGHT::QAR1(G)
      • K(a);S_FLIGHT::QAB1(G)
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