MESON Chess Problem Database

Problem Display
PID: 178205 (8/8/1pB5/2N2Q2/1k6/8/2K2p2/8 w - - 0 1)

Kozhakina, Alena Vladimirova

Vratnica-64, 2004

8/8/1pB5/2N2Q2/1k6/8/2K2p2/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3+?
      • 1...Kc4
        • 2.Qe4#
        • 2.Qg4#
        • 2.Qf4#
        • 2.Qd5#
      • 1...Ka3!
    • 1.Sa6+?
      • 1...Kc4
        • 2.Qd3#
        • 2.Qe4#
        • 2.Qg4#
        • 2.Qf4#
        • 2.Qd5#
      • 1...Ka3!
    • 1.Qd3?
      • threat
        • 2.Qc3#
      • 1...Ka5
        • 2.Qb5#
        • 2.Qd2#
        • 2.Qa3#
        • 2.Qc3#
      • 1...Kxc5!
    • 1.Qh3?
      • threat
        • 2.Qc3#
      • 1...Kc4
        • 2.Qc3#
      • 1...Ka5
        • 2.Qa3#
        • 2.Qc3#
      • 1...Kxc5!
    • 1.Qe4+?
      • 1...Ka3
        • 2.Qa4#
      • 1...Ka5
        • 2.Qa4#
      • 1...Kxc5!
    • 1.Qg4+?
      • 1...Ka3
        • 2.Qa4#
      • 1...Ka5
        • 2.Qa4#
      • 1...Kxc5!
    • 1.Qf3?
      • threat
        • 2.Qc3#
      • 1...Kc4
        • 2.Qc3#
      • 1...Ka5
        • 2.Qa3#
        • 2.Qc3#
      • 1...Kxc5!
    • 1.Qf4+?
      • 1...Ka3
        • 2.Qa4#
      • 1...Ka5
        • 2.Qd2#
        • 2.Qa4#
      • 1...Kxc5!
    • 1.Qf6?
      • threat
        • 2.Qc3#
      • 1...Ka3
        • 2.Qb2#
      • 1...Kc4
        • 2.Qc3#
      • 1...Ka5
        • 2.Qc3#
      • 1...Kxc5!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qc3#
      • 1...Ka3
        • 2.Qb2#
      • 1...Kc4
        • 2.Qc3#
      • 1...Ka5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
        • K(b);P-FLIGHT::QAR1(C)
        • K(b);S_FLIGHT::QAB(C)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(b);S_FLIGHT::QAB1(C)
      • K(b);P-FLIGHT::QAR1(C)
      • K(b);S_FLIGHT::QAB(C)
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