MESON Chess Problem Database
Problem Display
PID: 122170 (3Q3K/4p3/2r4p/3BB1N1/n1R5/3k4/2p1b1R1/5N2 w - - 0 1)
Rietveld, Johannes Jacob
BCF, 1921
#2
8 + 7
| 3713 | Snap | 2009 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxc4
- 2.Be4#
- 1...Re6
- 2.Bxe6#
- 1...Rf6
- 2.Be6#
- 1...Rg6
- 2.Be6#
- 1...Bd1
- 2.Rd2#
- 1...Bf3
- 2.Rd2#
- 1...Bg4
- 2.Rd2#
- 1...Bh5
- 2.Rd2#
- 1...Sc3
- 2.Rd4#
- 1...Sc5
- 2.Rc3#
- 1...Rxc4
- Tries
- 1.Sh3?
- threat
- 2.Sf2#
- 2.Sf4#
- 1...Rxc4
- 2.Sf2#
- 1...c1Q
- 2.Sf2#
- 1...c1B
- 2.Sf2#
- 1...Rf6
- 2.Be6#
- 1...Bd1
- 2.Sf4#
- 2.Rd2#
- 1...Bf3
- 2.Sf4#
- 2.Rd2#
- 1...Bg4
- 2.Sf4#
- 2.Rd2#
- 1...Bh5
- 2.Sf4#
- 2.Rd2#
- 1...Bxf1!
- threat
- 1.Se4?
- threat
- 2.Sf2#
- 2.Rd4#
- 1...Rxc4
- 2.Sf2#
- 1...c1Q
- 2.Sf2#
- 1...c1S
- 2.Sf2#
- 1...c1B
- 2.Sf2#
- 1...c1R
- 2.Sf2#
- 1...Rf6
- 2.Be6#
- 2.Rd4#
- 1...Bd1
- 2.Rd2#
- 2.Rd4#
- 1...Bf3
- 2.Rd2#
- 2.Rd4#
- 1...Bg4
- 2.Rd2#
- 2.Rd4#
- 1...Bh5
- 2.Rd2#
- 2.Rd4#
- 1...Bxf1!
- threat
- 1.Bf3+?
- 1...Rd6
- 2.Bxe2#
- 1...Kxc4!
- 1...Rd6
- 1.Rc3+?
- 1...Rxc3
- 2.Ba2#
- 2.Bb3#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Sxc3!
- 1...Rxc3
- 1.Rxa4?
- threat
- 2.Bc4#
- 2.Be4#
- 2.Bxc6#
- 1...hxg5
- 2.Be4#
- 2.Bxc6#
- 1...c1Q
- 2.Be4#
- 1...c1S
- 2.Be4#
- 1...c1B
- 2.Be4#
- 1...c1R
- 2.Be4#
- 1...Rc3
- 2.Ba2#
- 2.Bb3#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Rd4#
- 1...Rc4
- 2.Bxc4#
- 2.Be4#
- 1...Rc5
- 2.Bc4#
- 2.Be4#
- 1...Ra6
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 1...Rb6
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 1...Rd6
- 2.Bc4#
- 2.Be4#
- 2.Ra3#
- 1...Re6
- 2.Bc4#
- 2.Be4#
- 2.Bxe6#
- 2.Ra3#
- 1...Rf6
- 2.Bc4#
- 2.Be4#
- 2.Be6#
- 2.Ra3#
- 1...Rg6
- 2.Bc4#
- 2.Be4#
- 2.Be6#
- 2.Ra3#
- 1...Rc7
- 2.Bc4#
- 2.Be4#
- 1...Rc8
- 2.Bc4#
- 2.Be4#
- 1...Bf3
- 2.Bc4#
- 2.Be4#
- 2.Rd2#
- 1...Bg4
- 2.Bc4#
- 2.Be4#
- 2.Rd2#
- 1...Bxf1!
- threat
- 1.Rb4?
- threat
- 2.Bc4#
- 2.Be4#
- 2.Bxc6#
- 1...hxg5
- 2.Be4#
- 2.Bxc6#
- 1...c1Q
- 2.Be4#
- 1...c1S
- 2.Be4#
- 1...c1B
- 2.Be4#
- 1...c1R
- 2.Be4#
- 1...Rc3
- 2.Ba2#
- 2.Bb3#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Rd4#
- 1...Rc4
- 2.Bxc4#
- 2.Be4#
- 1...Rc5
- 2.Bc4#
- 2.Be4#
- 1...Ra6
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 1...Rb6
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 1...Rd6
- 2.Bc4#
- 2.Be4#
- 1...Re6
- 2.Bc4#
- 2.Be4#
- 2.Bxe6#
- 1...Rf6
- 2.Bc4#
- 2.Be4#
- 2.Be6#
- 1...Rg6
- 2.Bc4#
- 2.Be4#
- 2.Be6#
- 1...Rc7
- 2.Bc4#
- 2.Be4#
- 1...Rc8
- 2.Bc4#
- 2.Be4#
- 1...Bf3
- 2.Bc4#
- 2.Be4#
- 2.Rd2#
- 1...Bg4
- 2.Bc4#
- 2.Be4#
- 2.Rd2#
- 1...Sc3
- 2.Bc4#
- 2.Be4#
- 2.Rd4#
- 1...Sc5
- 2.Bc4#
- 2.Be4#
- 1...Sb6
- 2.Bc4#
- 2.Be4#
- 1...Bxf1!
- threat
- 1.Sh3?
- Keys
- 1.Qd7!
- threat
- 2.Qf5#
- 1...Rc8+
- 2.Bg8#
- 1...Rxc4
- 2.Be4#
- 1...Bxf1
- 2.Qh3#
- 1...Re6
- 2.Bxe6#
- 1...Rf6
- 2.Be6#
- 1...Bf3
- 2.Rd2#
- 1...Bg4
- 2.Rd2#
- 1...Sc3
- 2.Rd4#
- 1...Sc5
- 2.Rc3#
- 1...e6
- 2.Qh7#
- threat
- 1.Qd7!
This anticipates 17020(1945-1946)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(e);SBLOCK,XR(C)::QAR(G)+B(D),DCHECK
- R(e);N_GUARD::QAR(G)+B(D),XR(e)
- R(e);N_GUARD::QAR(G)+B(D)
- B(b);OGATE::R1(B)
- S(d);SBLOCK::R1(C)
- S(d);N_GUARD,S_CUTR(e)::R1(C)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(e);XR(C)::S(F)
- P(a);::S(F)
- R(e);N_GUARD::QAR(G)+B(D)
- Refutation
- B(b);XS(A)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(e);XR(C)::S(F)
- P(a);::S(F)
- Refutation
- B(b);XS(A)
- Try
- B(D);CHECK
- Vars
- R(e);P_SPINR(e)::B(D),XB(b)
- Refutation
- K(c);S_FLIGHT,XR(C)
- Try
- R(C);CHECK
- Refutation
- S(d);XR(C)
- Try
- R(C);XS(d)
- Threat
- DUALS(3)
- Vars
- P(a);::QAR(G)+B(D),DCHECK
- Refutation
- B(b);XS(A)
- Try
- R(C);
- Threat
- DUALS(3)
- Vars
- P(a);::QAR(G)+B(D),DCHECK
- Refutation
- B(b);XS(A)
- Try
- Actual
- Q(G);
- Threat
- QAB(G)
- Vars
- R(e);CHECK,N_GUARD::QAR(G)+B(D)
- R(e);SBLOCK,XR(C)::QAR(G)+B(D),DCHECK
- B(b);N_GUARD,XS(A)::QAR(G)
- R(e);N_GUARD::QAR(G)+B(D),XR(e)
- R(e);N_GUARD::QAR(G)+B(D)
- B(b);OGATE::R1(B)
- S(d);SBLOCK::R1(C)
- S(d);N_GUARD,S_CUTR(e)::R1(C)
- P(g);OGATE::QAB(G)
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).