MESON Chess Problem Database
Problem Display
PID: 78570 (1B3RK1/Q7/2Pr1b2/6P1/B1P1kPPP/5n2/4P1R1/1N1n1N2 w - - 0 1)
Brummelman, Derk Hendrikus (AKA Bruma, DH)
1st Prize, Probleemblad, 1947
#2
15 + 5
SOLUTION
- SOUND
- Sets
- 1...Rd2
- 2.Sg3#
- 1...Rd3
- 2.Sg3#
- 1...Rd4
- 2.Qh7#
- 1...Rd5
- 2.Sg3#
- 1...Rxc6
- 2.Sg3#
- 2.Bc2#
- 2.Bxc6#
- 1...Re6
- 2.Sg3#
- 2.Bc2#
- 1...Rd7
- 2.Sg3#
- 1...Rd8
- 2.Sg3#
- 1...Ba1
- 2.Sg3#
- 1...Bb2
- 2.Sg3#
- 1...Bc3
- 2.Sg3#
- 1...Bd4
- 2.Bc2#
- 1...Be5
- 2.Sg3#
- 1...Bxg5
- 2.Sg3#
- 1...Be7
- 2.Sg3#
- 1...Bg7
- 2.Sg3#
- 1...Bd8
- 2.Sg3#
- 1...Bh8
- 2.Sg3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Rd2
- Tries
- 1.Sc3+?
- 1...Bxc3
- 2.Sg3#
- 1...Sxc3
- 2.Qe3#
- 1...Kxf4!
- 1...Bxc3
- 1.Bxd1?
- threat
- 2.Qe3#
- 1...Kxf4
- 2.Qe3#
- 1...Rd3
- 2.Sg3#
- 1...Rd4
- 2.Sc3#
- 2.Qh7#
- 1...Bd4
- 2.Bc2#
- 1...Sd4!
- threat
- 1.Bc2+?
- 1...Rd3
- 2.Sg3#
- 2.Bxd3#
- 2.exd3#
- 1...Kxf4!
- 1...Rd3
- 1.Bxd6?
- threat
- 2.Sg3#
- 2.Bc2#
- 1...Bd4
- 2.Bc2#
- 2.Qh7#
- 1...Sb2
- 2.Sg3#
- 2.Qe3#
- 1...Sf2
- 2.Sg3#
- 2.Qe3#
- 1...Se3
- 2.Sg3#
- 2.Qxe3#
- 1...Se1
- 2.Sbd2#
- 2.Sfd2#
- 2.Sg3#
- 1...Sd4
- 2.Sbd2#
- 1...Se5!
- threat
- 1.Rxf6?
- threat
- 2.Sg3#
- 1...Rd4
- 2.Qh7#
- 1...Sd4
- 2.Sbd2#
- 1...Rd8+!
- threat
- 1.Qh7+?
- 1...Kxf4
- 2.Qf5#
- 1...Kd4!
- 1...Kxf4
- 1.Sc3+?
- Keys
- 1.Rf2!
- 1...Kxf4
- 2.Qd4#
- 1...Rxc6
- 2.Sg3#
- 2.Bc2#
- 2.Bxc6#
- 1...Bxg5
- 2.Sg3#
- 1...Sxf2
- 2.Qe3#
- 1...Sxh4
- 2.Sg3#
- 1...Sxg5
- 2.Sg3#
- 1...Rd2
- 2.Sg3#
- 1...Rd3
- 2.Sg3#
- 1...Rd4
- 2.Qh7#
- 1...Rd5
- 2.Sg3#
- 1...Re6
- 2.Sg3#
- 2.Bc2#
- 1...Rd7
- 2.Sg3#
- 1...Rd8
- 2.Sg3#
- 1...Ba1
- 2.Sg3#
- 1...Bb2
- 2.Sg3#
- 1...Bc3
- 2.Sg3#
- 1...Bd4
- 2.Bc2#
- 1...Be5
- 2.Sg3#
- 1...Be7
- 2.Sg3#
- 1...Bg7
- 2.Sg3#
- 1...Bd8
- 2.Sg3#
- 1...Bh8
- 2.Sg3#
- 1...Sb2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Se1
- 2.Sg3#
- 1...Sg1
- 2.Sg3#
- 1...Sd2
- 2.Sg3#
- 1...Sh2
- 2.Sg3#
- 1...Sd4
- 2.Sbd2#
- 1...Se5
- 2.Sg3#
- 1...Kxf4
- 1.Rf2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- R(d);::S(B)
- R(d);SBLOCK::QAB(L)
- R(d);P_PINR(N)::S(B)
- B(e);::S(B)
- B(e);S_CUTR(d)::B(E)
- B(e);XP(J)::S(B)
- S(a);N_GUARD::QAR1(L)
- S(a);N_GUARD::QAR1(L),XS(a)
- Tries
- Try
- S(A);CHECK
- Vars
- B(e);XS(A)::S(B)
- S(a);XS(A)::QAR1(L)
- Refutation
- K(c);P-FLIGHT,P_SPINB(e),P_SPINR(d),XP(G)
- Try
- B(E);XS(a)
- Threat
- QAR1(L)
- Vars
- K(c);P-FLIGHT,P_SPINB(e),P_SPINR(d),XP(G)::QAB1(L)
- R(d);::S(B)
- B(e);S_CUTR(d)::B(E)
- Refutation
- S(b);
- Try
- B(E);CHECK
- Refutation
- K(c);P-FLIGHT,P_SPINB(e),P_SPINR(d),XP(G)
- Try
- B(M);XR(d)
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::S(A)
- Refutation
- S(b);
- Try
- R(N);XB(e)
- Threat
- S(B)
- Vars
- R(d);SBLOCK::QAB(L)
- S(b);N_GUARD,S_CUTR(d)::S(A)
- Refutation
- R(d);CHECK
- Try
- Q(L);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINB(e),P_SPINR(d),XP(G)::QAR1(L)
- Refutation
- K(c);P-FLIGHT
- Try
- Actual
- R(D);
- Vars
- K(c);P-FLIGHT,P_SPINB(e),P_SPINR(d),P_SPINS(b),XP(G)::QAR2(L)
- B(e);XP(J)::S(B)
- S(a);N_GUARD,XR(D)::QAR1(L)
- S(b);XP(I)::S(B)
- S(b);XP(J)::S(B)
- R(d);::S(B)
- R(d);SBLOCK::QAB(L)
- R(d);P_PINR(N)::S(B)
- B(e);::S(B)
- B(e);S_CUTR(d)::B(E)
- S(a);N_GUARD::QAR1(L)
- S(a);N_GUARD::QAR1(L),XS(a)
- S(b);::S(B)
- S(b);N_GUARD,S_CUTR(d)::S(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).