MESON Chess Problem Database
Problem Display
PID: 80842 (4R1n1/4n1k1/4K3/5p2/3p4/3B4/7R/2Q5 w - - 0 1)
Razu, Ionel
The Field, 1949
(First published on Sat May 14 1949)
#2
5 + 5
SOLUTION
- SOUND
- Sets
- 1...Kg6
- 2.Qg1#
- 1...Sd5
- 2.Qg5#
- 2.Qg1#
- 1...Sc6
- 2.Qg5#
- 2.Qg1#
- 1...Sc8
- 2.Qg5#
- 2.Qg1#
- 1...Sf6
- 2.Qh6#
- 1...Sh6
- 2.Qxh6#
- 1...f4
- 2.Rh7#
- 1...Kg6
- Tries
- 1.Bxf5?
- threat
- 2.Rh7#
- 1...Sxf5
- 2.Qg5#
- 1...Sf6
- 2.Qh6#
- 1...Sh6
- 2.Qxh6#
- 1...Sg6!
- threat
- 1.Rh1?
- 1...Kg6
- 2.Qg1#
- 1...Sh6
- 2.Qxh6#
- 1...Sd5
- 2.Qg5#
- 2.Qg1#
- 1...Sc6
- 2.Qg5#
- 2.Qg1#
- 1...Sc8
- 2.Qg5#
- 2.Qg1#
- 1...Sf6
- 2.Qh6#
- 1...f4
- 2.Rh7#
- 1...Sg6!
- 1...Kg6
- 1.Rh3?
- 1...Kg6
- 2.Qg1#
- 1...Sh6
- 2.Qxh6#
- 1...Sd5
- 2.Qg5#
- 2.Qg1#
- 1...Sc6
- 2.Qg5#
- 2.Qg1#
- 1...Sc8
- 2.Qg5#
- 2.Qg1#
- 1...Sf6
- 2.Qh6#
- 1...f4
- 2.Rh7#
- 1...Sg6!
- 1...Kg6
- 1.Rh4?
- 1...Kg6
- 2.Qg1#
- 1...Sh6
- 2.Qxh6#
- 1...Sd5
- 2.Qg5#
- 2.Qg1#
- 1...Sc6
- 2.Qg5#
- 2.Qg1#
- 1...Sc8
- 2.Qg5#
- 2.Qg1#
- 1...Sf6
- 2.Qh6#
- 1...f4
- 2.Rh7#
- 1...Sg6!
- 1...Kg6
- 1.Rh5?
- 1...Kg6
- 2.Qg5#
- 1...Sh6
- 2.Qxh6#
- 1...Sd5
- 2.Qg5#
- 2.Qg1#
- 1...Sc6
- 2.Qg5#
- 2.Qg1#
- 1...Sc8
- 2.Qg5#
- 2.Qg1#
- 1...Sf6
- 2.Qh6#
- 1...f4
- 2.Rh7#
- 1...Sg6!
- 1...Kg6
- 1.Rxe7+?
- 1...Kg6
- 2.Bxf5#
- 2.Qg1#
- 1...Kf8
- 2.Qc8#
- 1...Sxe7!
- 1...Kg6
- 1.Rd8?
- 1...Kg6
- 2.Qg1#
- 1...Sh6
- 2.Qxh6#
- 1...Sd5
- 2.Qg5#
- 2.Qg1#
- 1...Sc6
- 2.Qg5#
- 2.Qg1#
- 1...Sc8
- 2.Qg5#
- 2.Qg1#
- 1...Sf6
- 2.Qh6#
- 1...f4
- 2.Rh7#
- 1...Sg6!
- 1...Kg6
- 1.Qd2?
- 1...Kg6
- 2.Qg2#
- 1...Sh6
- 2.Qxh6#
- 1...Sd5
- 2.Qg5#
- 2.Qg2#
- 1...Sc6
- 2.Qg5#
- 2.Qg2#
- 1...Sc8
- 2.Qg5#
- 2.Qg2#
- 1...Sf6
- 2.Qh6#
- 1...f4
- 2.Rh7#
- 1...Sg6!
- 1...Kg6
- 1.Qf4?
- 1...Kg6
- 2.Qg3#
- 2.Qg4#
- 1...Sh6
- 2.Qxh6#
- 1...Sd5
- 2.Qg3#
- 2.Qg5#
- 1...Sc6
- 2.Qg3#
- 2.Qg5#
- 1...Sc8
- 2.Qg3#
- 2.Qg5#
- 1...Sf6
- 2.Qh6#
- 1...Sg6!
- 1...Kg6
- 1.Bxf5?
- Keys
- 1.Rh8!
- 1...Kg6
- 2.Qg1#
- 1...Kxh8
- 2.Qh6#
- 1...Sg6
- 2.Rexg8#
- 1...Sd5
- 2.Rexg8#
- 1...Sc6
- 2.Rexg8#
- 1...Sc8
- 2.Rexg8#
- 1...Sf6
- 2.Qh6#
- 1...Sh6
- 2.Qxh6#
- 1...f4
- 2.Rh7#
- 1...Kg6
- 1.Rh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- K(d);P-FLIGHT,P_SPINP(b)::QAR(A)
- S(e);N_GUARD::QAB1(A)
- S(e);N_GUARD::QAB1(A),XS(e)
- P(b);::R1(B)
- Tries
- Try
- B(C);XP(b)
- Threat
- R1(B)
- Vars
- S(c);N_GUARD,XB(C)::QAR2(A)
- S(e);N_GUARD::QAB1(A)
- S(e);N_GUARD::QAB1(A),XS(e)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- K(d);P-FLIGHT,P_SPINP(b)::QAR(A)
- S(e);N_GUARD::QAB1(A),XS(e)
- S(e);N_GUARD::QAB1(A)
- P(b);::R1(B)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- K(d);P-FLIGHT,P_SPINP(b)::QAR(A)
- S(e);N_GUARD::QAB1(A),XS(e)
- S(e);N_GUARD::QAB1(A)
- P(b);::R1(B)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- K(d);P-FLIGHT,P_SPINP(b)::QAR(A)
- S(e);N_GUARD::QAB1(A),XS(e)
- S(e);N_GUARD::QAB1(A)
- P(b);::R1(B)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- K(d);P-FLIGHT,P_SPINP(b)::QAR1(A)
- S(e);N_GUARD::QAB1(A),XS(e)
- S(e);N_GUARD::QAB1(A)
- P(b);::R1(B)
- Refutation
- S(c);
- Try
- R(E);CHECK,XS(c)
- Vars
- K(d);S_FLIGHT::QAR(A)
- Refutation
- S(e);XR(E)
- Try
- R(E);
- Vars
- K(d);P-FLIGHT,P_SPINP(b)::QAR(A)
- S(e);N_GUARD::QAB1(A),XS(e)
- S(e);N_GUARD::QAB1(A)
- P(b);::R1(B)
- Refutation
- S(c);
- Try
- Q(A);
- Vars
- K(d);P-FLIGHT,P_SPINP(b)::QAR(A)
- S(e);N_GUARD::QAB1(A),XS(e)
- S(e);N_GUARD::QAB1(A)
- P(b);::R1(B)
- Refutation
- S(c);
- Try
- Q(A);
- Vars
- S(e);N_GUARD::QAB1(A),XS(e)
- S(e);N_GUARD::QAB1(A)
- Refutation
- S(c);
- Try
- Actual
- R(B);
- Vars
- K(d);P-FLIGHT,P_SPINP(b)::QAR(A)
- K(d);P_SPINS(e),S_FLIGHT,XR(B)::QAR2(A)
- S(c);N_GUARD,SBLOCK::R1(E),XS(e)
- S(c);N_GUARD::R1(E),XS(e)
- S(e);N_GUARD::QAB1(A)
- S(e);N_GUARD::QAB1(A),XS(e)
- P(b);::R1(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).