MESON Chess Problem Database

Problem Display
PID: 161407 (6R1/8/4B3/7p/1Q5K/3N4/4kB2/8 w - - 0 1)

Klipachev, Vladimir Panteleevich

Best Problems, 2011

6R1/8/4B3/7p/1Q5K/3N4/4kB2/8

#2

6 + 2

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf1
      • 2.Qe1#
  • Tries
    • 1.Bb3?
      • 1...Kf1
        • 2.Qe1#
      • 1...Kf3
        • 2.Bd1#
      • 1...Kxd3!
    • 1.Bf5?
      • 1...Kf1
        • 2.Qe1#
      • 1...Kf3
        • 2.Qe4#
      • 1...Kd1!
    • 1.Rg3?
      • threat
        • 2.Qe1#
      • 1...Kf1
        • 2.Qe1#
      • 1...Kd1!
    • 1.Qe1+?
      • 1...Kf3
        • 2.Bd5#
        • 2.Rg3#
        • 2.Qe3#
      • 1...Kxd3!
    • 1.Qd2+?
      • 1...Kf1
        • 2.Bh3#
        • 2.Rg1#
        • 2.Qe1#
        • 2.Qd1#
      • 1...Kf3
        • 2.Bd5#
        • 2.Qe3#
      • 1...Kxd2!
    • 1.Qb2+?
      • 1...Kd1
        • 2.Bb3#
        • 2.Rg1#
      • 1...Kf1
        • 2.Bh3#
        • 2.Rg1#
      • 1...Kf3
        • 2.Bd5#
      • 1...Kxd3!
  • Keys
    • 1.Re8!
      • 1...Kd1
        • 2.Bb3#
      • 1...Kf1
        • 2.Bh3#
      • 1...Kxd3
        • 2.Bf5#
      • 1...Kf3
        • 2.Bd5#

Anticipated by 19272(1951)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(C)
  • Tries
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • R(F);
    • Vars
      • K(a);S_FLIGHT::B(E)
      • K(a);S_FLIGHT,XS(B)::B(E)
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