MESON Chess Problem Database
Problem Display
PID: 140413 (4R1q1/4NB2/1K4p1/1pP2b2/RB2kN1r/8/2p1P3/2Q5 w - - 0 1)
Ilyasov, Stanislav Alekseevich
Probleemblad, 1976
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Sc6#
- 1...Ke5
- 2.Bc3#
- 1...Kd4
- Tries
- 1.Sg2?
- threat
- 2.Qe3#
- 1...Kd4
- 2.Sc6#
- 2.Qe3#
- 1...Rh3
- 2.Qf4#
- 1...Ke5!
- threat
- 1.Sed5+?
- 1...Kd4
- 2.Bc3#
- 1...Qxe8
- 2.Qe3#
- 1...Be6!
- 1...Kd4
- 1.Sc6+?
- 1...Qxe8
- 2.Bd5#
- 1...Be6!
- 1...Qxe8
- 1.Sxg8+?
- 1...Kd4
- 2.Qb2#
- 2.Qe3#
- 2.Qa1#
- 2.Qg1#
- 2.e3#
- 1...Be6!
- 1...Kd4
- 1.Bc3+?
- 1...b4
- 2.Rxb4#
- 1...bxa4!
- 1...b4
- 1.Bd5+?
- 1...Kd4
- 2.Sc6#
- 1...Ke5
- 2.Bc3#
- 1...Qxd5!
- 1...Kd4
- 1.Sg2?
- Keys
- 1.Sfd5!
- threat
- 2.Qe3#
- 1...Kd4
- 2.Bc3#
- 1...Ke5
- 2.Sc6#
- 1...Rh3
- 2.Qf4#
- threat
- 1.Sfd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(b);P-FLIGHT::S(H)
- K(b);P-FLIGHT::B(D)
- Tries
- Try
- S(E);
- Threat
- QAR1(A)
- Vars
- R(c);N_GUARD::QAR1(A)
- Refutation
- K(b);P-FLIGHT
- Try
- S(H);CHECK
- Vars
- K(b);P-FLIGHT::R(C)+B(D),DCHECK
- Q(g);XR(J)::QAR1(A)
- Refutation
- B(e);P_SPINB(e)
- Try
- S(H);CHECK
- Vars
- Q(g);XR(J)::B(I)
- Refutation
- B(e);P_SPINB(e)
- Try
- S(H);CHECK,XQ(g)
- Refutation
- B(e);P_SPINB(e)
- Try
- B(D);CHECK
- Vars
- P(d);P_SPINP(d)::R(C),XP(d)
- Refutation
- P(d);XR(C)
- Try
- B(I);CHECK
- Vars
- K(b);P-FLIGHT::S(H)
- K(b);P-FLIGHT::B(D)
- Refutation
- Q(g);XB(I)
- Try
- Actual
- S(E);
- Threat
- QAR1(A)
- Vars
- K(b);P-FLIGHT::R(C)+B(D),DCHECK
- K(b);P-FLIGHT::R(J)+S(H),DCHECK
- R(c);N_GUARD::QAR1(A)
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).