MESON Chess Problem Database
Problem Display
PID: 255893 (3B4/8/K3RPNp/p1p1pk1P/2Q1n2P/4r2r/2N1npRb/3Bqb2 w - - 0 1)
Swane, Jan Arnold Willem
Probleemblad, 1947
#2
11 + 13
SOLUTION
- SOUND
- Sets
- 1...Rxh4
- 2.Sxe3#
- 1...Bg1
- 2.Rxe5#
- 1...Bg3
- 2.Sxe3#
- 1...Bf4
- 2.Se7#
- 1...Sc1
- 2.Bg4#
- 1...Sg1
- 2.Bg4#
- 1...S2c3
- 2.Bg4#
- 1...S2g3
- 2.Rxe5#
- 1...Sd4
- 2.Bg4#
- 1...Sf4
- 2.Se7#
- 2.Bg4#
- 2.Rxe5#
- 1...Sd2
- 2.Se7#
- 2.Qg4#
- 1...S4c3
- 2.Se7#
- 2.Qg4#
- 1...S4g3
- 2.Sxe3#
- 2.Se7#
- 1...Sg5
- 2.Se7#
- 2.Qg4#
- 1...Sd6
- 2.Se7#
- 2.Qg4#
- 1...Sxf6
- 2.Se7#
- 2.Rxf6#
- 1...Rxh4
- Tries
- 1.Rg5+?
- 1...Sxg5
- 2.Se7#
- 1...hxg5!
- 1...Sxg5
- 1.Rb6?
- threat
- 2.Qe6#
- 1...Sxf6
- 2.Se7#
- 2.Rxf6#
- 1...Sc1
- 2.Bg4#
- 1...Sg1
- 2.Bg4#
- 1...S2c3
- 2.Bg4#
- 1...Sd4
- 2.Bg4#
- 1...Sf4
- 2.Se7#
- 2.Bg4#
- 1...Sd2
- 2.Se7#
- 2.Qg4#
- 1...S4c3
- 2.Se7#
- 2.Qg4#
- 1...S4g3
- 2.Sxe3#
- 2.Se7#
- 1...Sg5
- 2.Se7#
- 2.Qg4#
- 1...Sd6
- 2.Qg4#
- 1...S2g3!
- threat
- 1.Rc6?
- threat
- 2.Qe6#
- 1...Sxf6
- 2.Se7#
- 2.Rxf6#
- 1...Sc1
- 2.Bg4#
- 1...Sg1
- 2.Bg4#
- 1...S2c3
- 2.Bg4#
- 1...Sd4
- 2.Bg4#
- 1...Sf4
- 2.Se7#
- 2.Bg4#
- 1...Sd2
- 2.Se7#
- 2.Qg4#
- 1...S4c3
- 2.Se7#
- 2.Qg4#
- 1...S4g3
- 2.Sxe3#
- 2.Se7#
- 1...Sg5
- 2.Se7#
- 2.Qg4#
- 1...Sd6
- 2.Qg4#
- 1...S2g3!
- threat
- 1.Rd6?
- threat
- 2.Qe6#
- 1...Sxd6
- 2.Qg4#
- 1...Sxf6
- 2.Se7#
- 2.Rxf6#
- 1...Sc1
- 2.Bg4#
- 1...Sg1
- 2.Bg4#
- 1...S2c3
- 2.Bg4#
- 1...Sd4
- 2.Bg4#
- 1...Sf4
- 2.Se7#
- 2.Bg4#
- 1...Sd2
- 2.Se7#
- 2.Qg4#
- 1...S4c3
- 2.Se7#
- 2.Qg4#
- 1...S4g3
- 2.Sxe3#
- 2.Se7#
- 1...Sg5
- 2.Se7#
- 2.Qg4#
- 1...S2g3!
- threat
- 1.Rg5+?
- Keys
- 1.Re8!
- threat
- 2.Qe6#
- 1...Sxf6
- 2.Se7#
- 1...S2g3
- 2.Rxe5#
- 1...Sc1
- 2.Bg4#
- 1...Sg1
- 2.Bg4#
- 1...S2c3
- 2.Bg4#
- 1...Sd4
- 2.Bg4#
- 1...Sf4
- 2.Bg4#
- 2.Rxe5#
- 1...Sd2
- 2.Qg4#
- 1...S4c3
- 2.Qg4#
- 1...S4g3
- 2.Sxe3#
- 1...Sg5
- 2.Qg4#
- 1...Sd6
- 2.Qg4#
- threat
- 1.Re8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 4
- Sets
- R(g);N_GUARD,XP(E)::S(B),XR(f)
- B(e);N_GUARD::R1(H),XP(k)
- B(e);S_CUTR(g)::S(B),XR(f)
- B(e);SBLOCK::S(J)
- S(c);OGATE,P_PINQ(D)::B(A)
- S(c);P_PINQ(D),S_CUTB(e)::R1(H),XP(k)
- Tries
- Try
- R(C);CHECK
- Vars
- S(h);XR(C)::S(J)
- Refutation
- P(m);XR(C)
- Try
- R(H);
- Threat
- QAB1(D)
- Vars
- S(c);OGATE,P_PINQ(D)::B(A)
- S(h);OGATE::QAB1(D)
- Refutation
- S(c);P_PINQ(D)
- Try
- R(H);
- Threat
- QAB1(D)
- Vars
- S(c);OGATE,P_PINQ(D)::B(A)
- S(h);OGATE::QAB1(D)
- Refutation
- S(c);P_PINQ(D)
- Try
- R(H);
- Threat
- QAB1(D)
- Vars
- S(h);OGATE,XR(H)::QAB1(D)
- S(c);OGATE,P_PINQ(D)::B(A)
- Refutation
- S(c);P_PINQ(D)
- Try
- Actual
- R(H);
- Threat
- QAB1(D)
- Vars
- S(h);SBLOCK,XP(I)::S(J)
- S(c);P_PINQ(D),S_CUTB(e)::R1(H),XP(k)
- S(c);OGATE,P_PINQ(D)::B(A)
- S(h);OGATE::QAB1(D)
- S(h);S_CUTR(g)::S(B),XR(f)
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).