MESON Chess Problem Database

Problem Display
PID: 266993 (8/8/2B5/2B5/2p1P3/2N5/p1k1p3/K3Q3 w - - 0 1)

Akimov, Nikolai Nikolaevich

64 Shakhmatnoe obozrenie, 2022

8/8/2B5/2B5/2p1P3/2N5/p1k1p3/K3Q3

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kb3
      • 2.Ba4#
  • Tries
    • 1.Sxa2?
      • 1...Kb3
        • 2.Qc3#
        • 2.Qb1#
      • 1...Kd3
        • 2.Sb4#
        • 2.Qc3#
      • 1...c3!
    • 1.Sxe2?
      • 1...Kb3
        • 2.Sd4#
        • 2.Qc3#
        • 2.Qd1#
      • 1...Kd3
        • 2.Qd1#
      • 1...c3!
    • 1.Sa4?
      • 1...Kb3
        • 2.Qc3#
      • 1...Kd3
        • 2.Qc3#
      • 1...c3!
    • 1.Sb5?
      • 1...Kb3
        • 2.Sd4#
      • 1...Kd3
        • 2.Qc3#
      • 1...c3!
    • 1.Sd5?
      • 1...Kb3
        • 2.Qc3#
      • 1...Kd3
        • 2.Sb4#
      • 1...c3!
    • 1.Be3?
      • 1...Kd3
        • 2.Qd2#
      • 1...Kb3!
    • 1.Bd6?
      • 1...Kb3
        • 2.Ba4#
      • 1...Kd3!
    • 1.Be7?
      • 1...Kb3
        • 2.Ba4#
      • 1...Kd3!
    • 1.Bf8?
      • 1...Kb3
        • 2.Ba4#
      • 1...Kd3!
    • 1.Bb5?
      • 1...Kb3
        • 2.Ba4#
      • 1...Kd3!
    • 1.Bd7?
      • 1...Kb3
        • 2.Ba4#
      • 1...Kd3!
    • 1.Be8?
      • 1...Kb3
        • 2.Ba4#
      • 1...Kd3!
    • 1.Qd2+?
      • 1...Kb3
        • 2.Ba4#
        • 2.Qb2#
      • 1...Kxd2!
    • 1.Qxe2+?
      • 1...Kc1
        • 2.Sxa2#
        • 2.Ba3#
        • 2.Be3#
        • 2.Qd1#
        • 2.Qb2#
      • 1...Kb3
        • 2.Qb2#
      • 1...Kxc3!
  • Keys
    • 1.e5!
      • 1...Kb3
        • 2.Ba4#
      • 1...Kd3
        • 2.Be4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);N_GUARD,S_FLIGHT::B(F)
  • Tries
    • Try
      • S(C);XP(a)
      • Refutation
        • P(d);
    • Try
      • S(C);XP(c)
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAR2(B)
      • Refutation
        • P(d);
    • Try
      • S(C);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAR1(B)
      • Refutation
        • P(d);
    • Try
      • S(C);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(C)
        • K(b);N_GUARD,S_FLIGHT::QAR1(B)
      • Refutation
        • P(d);
    • Try
      • S(C);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAR1(B)
        • K(b);N_GUARD,S_FLIGHT::S(C)
      • Refutation
        • P(d);
    • Try
      • B(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(F)
      • Refutation
        • K(b);P_SPINP(d),S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(b);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK,XP(c)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT,XS(C)
  • Actual
    • P(D);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::B(F)
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