MESON Chess Problem Database

Problem Display
PID: 269093 (8/8/p1K2N2/8/2kp4/2N5/1Q6/8 w - - 0 1)

Velikhanov, Kenan

2nd HM., Lincoln MT (StrateGems), 2022

8/8/p1K2N2/8/2kp4/2N5/1Q6/8

#2

4 + 3

6490 yacpdb 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Sb1?
      • 1...d3
        • 2.Sd2#
        • 2.Sa3#
        • 2.Qc3#
      • 1...a5
        • 2.Qb5#
      • 1...Kd3!
    • 1.Sd1?
      • 1...d3
        • 2.Se3#
        • 2.Qc3#
      • 1...a5
        • 2.Qb5#
      • 1...Kd3!
    • 1.Sa2?
      • threat
        • 2.Qc2#
      • 1...d3
        • 2.Qc3#
        • 2.Qb4#
      • 1...Kd3!
    • 1.Se2?
      • 1...d3
        • 2.Qc3#
      • 1...a5
        • 2.Qb5#
      • 1...Kd3!
    • 1.Sa4?
      • 1...d3
        • 2.Sb6#
        • 2.Qc3#
      • 1...a5
        • 2.Qb5#
      • 1...Kd3!
    • 1.Sce4?
      • 1...d3
        • 2.Sd2#
        • 2.Sd6#
        • 2.Qc3#
      • 1...a5
        • 2.Qb5#
      • 1...Kd3!
    • 1.Scd5?
      • threat
        • 2.Qc2#
      • 1...d3
        • 2.Se3#
        • 2.Sb6#
        • 2.Qc3#
        • 2.Qb4#
      • 1...Kd3!
    • 1.Sfe4?
      • 1...Kd3
        • 2.Qe2#
      • 1...dxc3
        • 2.Qxc3#
      • 1...a5
        • 2.Qb5#
      • 1...d3!
  • Keys
    • 1.Sfd5!
      • 1...Kd3
        • 2.Qe2#
      • 1...dxc3
        • 2.Qxc3#
      • 1...d3
        • 2.Qb4#
      • 1...a5
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • P(c);N_GUARD::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • P(c);N_GUARD::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • P(b);N_GUARD::QAR1(A)
        • P(c);N_GUARD::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • P(c);N_GUARD::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • P(c);N_GUARD::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(A)
        • P(b);OGATE,XS(B)::QAR1(A),XP(b)
        • P(c);N_GUARD::QAB1(A)
      • Refutation
        • P(b);
  • Actual
    • S(D);
    • Vars
      • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(A)
      • P(b);OGATE,XS(B)::QAR1(A),XP(b)
      • P(b);SBLOCK::QAR1(A)
      • P(c);N_GUARD::QAB1(A)
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