MESON Chess Problem Database

Problem Display
PID: 172521 (8/8/8/8/Q2N4/3kp3/5p2/2Kn4 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2002

8/8/8/8/Q2N4/3kp3/5p2/2Kn4

#2

3 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sb5?
      • threat
        • 2.Qc2#
      • 1...Ke2
        • 2.Qxd1#
      • 1...e2
        • 2.Qd4#
      • 1...Sc3!
    • 1.Sc6?
      • threat
        • 2.Qc2#
      • 1...Ke2
        • 2.Qxd1#
      • 1...Kc3
        • 2.Qc2#
      • 1...e2
        • 2.Qd4#
      • 1...Sc3!
    • 1.Se6?
      • threat
        • 2.Qc2#
      • 1...Ke2
        • 2.Qxd1#
      • 1...Sc3
        • 2.Sf4#
      • 1...e2
        • 2.Qd4#
      • 1...Kc3!
  • Keys
    • 1.Se2!
      • threat
        • 2.Qc2#
      • 1...Kxe2
        • 2.Qxd1#
      • 1...Sc3
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);S_FLIGHT::QAB1(B),XS(a)
        • P(d);SBLOCK::QAR1(B)
      • Refutation
        • S(a);
    • Try
      • S(C);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);S_FLIGHT::QAB1(B),XS(a)
        • K(c);P-FLIGHT::QAR1(B)
        • P(d);SBLOCK::QAR1(B)
      • Refutation
        • S(a);
    • Try
      • S(C);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);S_FLIGHT::QAB1(B),XS(a)
        • S(a);SBLOCK::S(C)
        • P(d);SBLOCK::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAB1(B)
    • Vars
      • K(c);S_FLIGHT,XS(C)::QAB1(B),XS(a)
      • S(a);SBLOCK::S(C)
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