MESON Chess Problem Database
Problem Display
PID: 146650 (8/3RK1N1/5P1p/p1BPk3/r7/5Q2/4Pp2/bb3q2 w - - 0 1)
Raz, Josef
Variantim, 1988
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Bd6#
- 1...Re4
- 2.Qf5#
- 1...Bd4
- 2.Bd6#
- 1...Ba2
- 2.Qf5#
- 1...Be4
- 2.Qg3#
- 1...Bf5
- 2.Qxf5#
- 1...Rd4
- Tries
- 1.Rd6?
- threat
- 2.Re6#
- 1...Re4
- 2.Qf5#
- 1...Be4
- 2.Qg3#
- 1...Bf5
- 2.Qxf5#
- 1...Qh3!
- threat
- 1.Qh5+?
- 1...Ke4
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Kf4!
- 1...Ke4
- 1.Qe3+?
- 1...Be4
- 2.Qg3#
- 1...Re4!
- 1...Be4
- 1.Qg3+?
- 1...Ke4
- 2.Qe3#
- 1...Rf4!
- 1...Ke4
- 1.e3?
- threat
- 2.Bd6#
- 1...Re4
- 2.Qh5#
- 2.Qf5#
- 1...Be4
- 2.Qg3#
- 2.Qf4#
- 1...Qa6!
- threat
- 1.e4?
- threat
- 2.Qf5#
- 1...Bxe4
- 2.Qg3#
- 1...Qh3!
- threat
- 1.Rd6?
- Keys
- 1.Se6!
- threat
- 2.Bd6#
- 1...Rf4
- 2.Qxf4#
- 1...Re4
- 2.Qh5#
- 1...Be4
- 2.Qf4#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(e);SBLOCK::B(C)
- R(e);S_CUTB(b)::QAR1(B)
- B(a);SBLOCK::B(C)
- B(b);N_GUARD::QAR1(B)
- B(b);SBLOCK,S_CUTR(e)::QAB(B)
- B(b);N_GUARD::QAR1(B),XB(b)
- Tries
- Try
- R(F);
- Threat
- R1(F)
- Vars
- R(e);S_CUTB(b)::QAR1(B)
- B(b);SBLOCK,S_CUTR(e)::QAB(B)
- B(b);N_GUARD::QAR1(B),XB(b)
- Refutation
- Q(c);
- Try
- Q(B);CHECK
- Vars
- K(g);P-FLIGHT::QAB1(B)
- B(b);N_GUARD,P_SPINB(b)::QAR1(B),XB(b)
- Refutation
- K(g);S_FLIGHT
- Try
- Q(B);CHECK
- Vars
- B(b);P_SPINB(b),SBLOCK,S_CUTR(e)::QAB(B)
- Refutation
- R(e);P_SPINR(e)
- Try
- Q(B);CHECK
- Vars
- K(g);P-FLIGHT::QAR1(B)
- Refutation
- R(e);P_SPINR(e)
- Try
- P(A);
- Threat
- B(C)
- Refutation
- Q(c);
- Try
- P(A);
- Threat
- QAR1(B)
- Vars
- B(b);SBLOCK,XP(A)::QAB(B)
- Refutation
- Q(c);
- Try
- Actual
- S(H);
- Threat
- B(C)
- Vars
- R(e);N_GUARD::QAB1(B),XR(e)
- R(e);SBLOCK,S_CUTB(b)::QAR(B)
- B(b);S_CUTR(e)::QAB1(B)
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).