MESON Chess Problem Database
Problem Display
PID: 274386 (3R3K/r1Q3N1/q1n2P2/n2b2b1/3PkpP1/3p3R/2P5/6BN w - - 0 1)
Pries, Albert
Probleemblad, 1953
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Qb7
- 2.cxd3#
- 1...Qc8
- 2.cxd3#
- 1...Qb6
- 2.cxd3#
- 1...Ba2
- 2.Sf2#
- 1...Bb3
- 2.Sf2#
- 1...Bc4
- 2.Sf2#
- 1...Be6
- 2.Sf2#
- 1...Bf7
- 2.Sf2#
- 1...Bg8
- 2.Sf2#
- 1...Sc4
- 2.cxd3#
- 1...Sb4
- 2.Qe5#
- 1...Sxd4
- 2.Sf2#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sxd8
- 2.Qe5#
- 1...f3
- 2.Sg3#
- 1...Qb7
- Tries
- 1.Sf5?
- threat
- 2.Sf2#
- 2.Sd6#
- 1...Sxd4
- 2.Sf2#
- 1...Sxd8
- 2.Sf2#
- 2.Qe5#
- 1...Ba2
- 2.Sf2#
- 1...Bb3
- 2.Sf2#
- 1...Bc4
- 2.Sf2#
- 1...Be6
- 2.Sf2#
- 1...Bf7
- 2.Sf2#
- 1...Bg8
- 2.Sf2#
- 1...Bh4
- 2.Sd6#
- 1...Sc4
- 2.Sf2#
- 2.cxd3#
- 1...Sb7
- 2.Sf2#
- 1...Sb4
- 2.Sf2#
- 2.Qe5#
- 1...Se5
- 2.Sf2#
- 2.Qxe5#
- 1...Se7
- 2.Sf2#
- 2.Qe5#
- 1...Sb8
- 2.Sf2#
- 2.Qe5#
- 1...f3
- 2.Sf2#
- 2.Shg3#
- 2.Sfg3#
- 1...Bxf6+!
- threat
- 1.Se6?
- threat
- 2.Sf2#
- 2.Sc5#
- 2.Sxg5#
- 1...Bxe6
- 2.Sf2#
- 1...Qc4
- 2.Sf2#
- 2.Sxg5#
- 1...Qb5
- 2.Sf2#
- 2.Sxg5#
- 1...Qb6
- 2.Sf2#
- 2.Sxg5#
- 2.cxd3#
- 1...Bh4
- 2.Sc5#
- 2.Qxf4#
- 1...Bh6
- 2.Sf2#
- 2.Sc5#
- 1...Sb3
- 2.Sf2#
- 2.Sxg5#
- 1...Sb7
- 2.Sf2#
- 2.Sxg5#
- 2.Qh7#
- 1...f3
- 2.Sg3#
- 2.Sc5#
- 2.Sxg5#
- 1...Bxf6+!
- threat
- 1.Re8+?
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...Se7
- 2.Qe5#
- 1...Be6!
- 1...Se5
- 1.c3?
- threat
- 2.Sf2#
- 1...f3
- 2.Sg3#
- 1...Bh4!
- threat
- 1.Sf5?
- Keys
- 1.Se8!
- threat
- 2.Sd6#
- 1...Bxf6+
- 2.Sxf6#
- 1...Sxd4
- 2.Sf2#
- 1...Sxd8
- 2.Qe5#
- 1...Ba2
- 2.Sf2#
- 1...Bb3
- 2.Sf2#
- 1...Bc4
- 2.Sf2#
- 1...Be6
- 2.Sf2#
- 1...Bf7
- 2.Sf2#
- 1...Bg8
- 2.Sf2#
- 1...Sc4
- 2.cxd3#
- 1...Sb7
- 2.Qh7#
- 1...Sb4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...f3
- 2.Sg3#
- threat
- 1.Se8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- Q(g);N_GUARD::P(C),XP(a)
- Q(g);N_GUARD,P_PINR(J)::P(C),XP(a)
- B(e);::S(B)
- S(d);S_CUTQ(g)::P(C),XP(a)
- S(h);N_GUARD::QAR1(H)
- S(h);SBLOCK,XP(E)::S(B)
- S(h);N_GUARD::QAR1(H),XS(h)
- S(h);N_GUARD,XR(J)::QAR1(H)
- P(c);N_GUARD,SBLOCK::S(B)
- Tries
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- S(h);XP(E)::S(B)
- B(e);::S(B)
- B(f);::S(I)
- S(d);::S(B)
- Refutation
- B(f);CHECK,XP(G)
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- B(e);XS(I)::S(B)
- Refutation
- B(f);CHECK,XP(G)
- Try
- R(J);CHECK
- Vars
- S(h);N_GUARD,P_SPINS(h)::QAR1(H)
- Refutation
- B(e);P_SPINB(e)
- Try
- P(C);
- Threat
- S(B)
- Vars
- P(c);N_GUARD,SBLOCK::S(B)
- Refutation
- B(f);
- Try
- Actual
- S(I);
- Threat
- S(I)
- Vars
- B(f);CHECK,XP(G)::S(I),XB(f)
- S(h);SBLOCK,XP(E)::S(B)
- S(h);N_GUARD,XR(J)::QAR1(H)
- B(e);::S(B)
- S(d);S_CUTQ(g)::P(C),XP(a)
- S(d);S_CUTR(i)::QAB(H)
- S(h);N_GUARD::QAR1(H)
- S(h);N_GUARD::QAR1(H),XS(h)
- P(c);N_GUARD,SBLOCK::S(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).