MESON Chess Problem Database

Problem Display
PID: 172552 (8/8/8/3p4/1K1kb3/8/3N4/4Q2B w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2004

8/8/8/3p4/1K1kb3/8/3N4/4Q2B

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Sb3#
      • 2.Sf3#
  • Tries
    • 1.Sf1?
      • threat
        • 2.Qc3#
      • 1...Kd3
        • 2.Qd2#
        • 2.Qd1#
      • 1...Bxh1
        • 2.Qe3#
      • 1...Bg2
        • 2.Qe3#
      • 1...Bf3
        • 2.Qe3#
      • 1...Ke5!
    • 1.Sb3+?
      • 1...Kd3
        • 2.Qd2#
      • 1...Ke5!
    • 1.Sf3+?
      • 1...Kd3
        • 2.Qd2#
      • 1...Bxf3!
    • 1.Sxe4?
      • threat
        • 2.Qc3#
      • 1...Kd3
        • 2.Qd2#
      • 1...dxe4
        • 2.Qxe4#
      • 1...Ke5!
    • 1.Bxe4?
      • threat
        • 2.Sf3#
      • 1...dxe4
        • 2.Qxe4#
      • 1...Ke5!
    • 1.Qg3?
      • threat
        • 2.Sb3#
        • 2.Qc3#
      • 1...Bxh1
        • 2.Qc3#
      • 1...Bc2
        • 2.Qc3#
      • 1...Bg2
        • 2.Qc3#
      • 1...Bd3
        • 2.Sb3#
      • 1...Bf3!
    • 1.Qe2?
      • 1...Bxh1
        • 2.Sb3#
      • 1...Bb1
        • 2.Sb3#
        • 2.Sf3#
      • 1...Bc2
        • 2.Sf3#
      • 1...Bg2
        • 2.Sb3#
      • 1...Bd3
        • 2.Sb3#
        • 2.Sf3#
      • 1...Bf3
        • 2.Sb3#
        • 2.Sxf3#
      • 1...Bf5
        • 2.Sb3#
        • 2.Sf3#
      • 1...Bg6
        • 2.Sb3#
        • 2.Sf3#
      • 1...Bh7
        • 2.Sb3#
        • 2.Sf3#
      • 1...Ke5!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qc3#
        • 2.Qe3#
      • 1...Kd3
        • 2.Qd2#
        • 2.Qd1#
      • 1...Bxh1
        • 2.Qe3#
      • 1...dxc4
        • 2.Qxe4#
      • 1...Bg2
        • 2.Qe3#
      • 1...Bf3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • B(b);XB(B)::QAB1(A)
        • B(b);::QAB1(A)
      • Refutation
        • K(a);P_SPINB(b),S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);P_SPINB(b),S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • B(b);XS(C)
    • Try
      • S(C);XB(b)
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • P(c);OGATE,XS(C)::QAR1(A),XP(c)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);XB(b)
      • Threat
        • S(C)
      • Vars
        • P(c);OGATE,XB(B)::QAR1(A),XP(c)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XB(B)::QAB1(A)
        • B(b);::QAB1(A)
        • B(b);::S(C)
      • Refutation
        • B(b);
    • Try
      • Q(A);
      • Vars
        • B(b);XB(B)::S(C)
        • B(b);N_GUARD::S(C)
        • B(b);::S(C)
      • Refutation
        • K(a);P_SPINB(b),S_FLIGHT
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • B(b);XB(B)::QAB1(A)
      • P(c);N_GUARD,XS(C)::QAR1(A),XB(b)
      • B(b);::QAB1(A)
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