MESON Chess Problem Database
Problem Display
PID: 184021 (8/8/6K1/2Qp4/4k3/3pN3/8/4N3 w - - 0 1)
Chernyavsky, Mykola Vasilovich
Die Schwalbe, 2018
#2
4 + 3
SOLUTION
- SOUND
- Tries
- 1.Kg5?
- 1...Ke5
- 2.Qxd5#
- 1...d4
- 2.Qe7#
- 1...d2!
- 1...Ke5
- 1.S1g2?
- threat
- 2.Qxd5#
- 1...Ke5
- 2.Qxd5#
- 1...d4
- 2.Qd5#
- 2.Qf5#
- 1...Kf3!
- threat
- 1.Sf1?
- threat
- 2.Qe3#
- 1...Kf4
- 2.Qd4#
- 1...d4
- 2.Qf5#
- 1...Ke5!
- threat
- 1.S3g2?
- threat
- 2.Qe3#
- 1...d4
- 2.Qf5#
- 1...Ke5!
- threat
- 1.Sg4?
- threat
- 2.Qe3#
- 1...d4
- 2.Qe5#
- 2.Qf5#
- 1...Kf4!
- threat
- 1.Kg5?
- Keys
- 1.Sf5!
- threat
- 2.Qe3#
- 2.Qd4#
- 1...Kf4
- 2.Qd4#
- 1...Ke5
- 2.Qe3#
- 1...d4
- 2.Qxd4#
- threat
- 1.Sf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- K(b);P-FLIGHT,P_SPINP(c)::QAR1(C),XP(c)
- P(c);SBLOCK::QAR(C)
- Refutation
- P(a);
- Try
- S(A);
- Threat
- QAB1(C),XP(c)
- Vars
- K(b);P-FLIGHT,P_SPINP(c)::QAR1(C),XP(c)
- Refutation
- K(b);S_FLIGHT
- Try
- S(B);
- Threat
- QAR1(C)
- Vars
- K(b);P-FLIGHT::QAR2(C)
- P(c);OGATE,SBLOCK::QAB1(C)
- Refutation
- K(b);P-FLIGHT,P_SPINP(c)
- Try
- S(B);
- Threat
- QAR1(C)
- Vars
- P(c);OGATE,SBLOCK::QAB1(C)
- Refutation
- K(b);P-FLIGHT,P_SPINP(c)
- Try
- S(B);
- Threat
- QAR1(C)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- S(B);
- Threat
- DUALS(2)
- Vars
- K(b);P-FLIGHT::QAR2(C)
- K(b);P-FLIGHT,P_SPINP(c)::QAR2(C)
- P(c);::QAR1(C),XP(c)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).