MESON Chess Problem Database
Problem Display
PID: 89886 (3r1b2/5N2/3RB3/2B3pp/4kp2/rN3p2/bn1R4/2n3KQ w - - 0 1)
Kozdon, Baldur
Die Schwalbe, 1975
#2
8 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Se2+
- 2.Rxe2#
- 1...Sxb3
- 2.Re2#
- 1...Scd3
- 2.Re2#
- 1...Se2+
- Tries
- 1.Bf2?
- threat
- 2.Sc5#
- 2.R2d4#
- 1...Se2+
- 2.Rxe2#
- 1...Rxb3
- 2.R2d4#
- 1...Rxd6
- 2.Sc5#
- 1...Bxb3
- 2.R2d4#
- 1...Bxd6
- 2.Rd4#
- 1...Sxb3
- 2.Re2#
- 1...Ra4
- 2.Sc5#
- 1...Ra5
- 2.R2d4#
- 1...Rc8
- 2.R2d4#
- 2.R6d4#
- 1...Bg7
- 2.Sc5#
- 1...Scd3
- 2.Re2#
- 1...Sa4
- 2.R2d4#
- 1...Sbd3!
- threat
- 1.Rf2?
- threat
- 2.Sd2#
- 2.Qxf3#
- 1...Se2+
- 2.Rxe2#
- 1...Rxd6
- 2.Qxf3#
- 1...Bxb3
- 2.Qxf3#
- 1...Bxd6
- 2.Qxf3#
- 1...Sxb3
- 2.Re2#
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- 1...g4
- 2.Sd2#
- 1...Rxb3!
- threat
- 1.R2d3?
- threat
- 2.Sd2#
- 2.Qxf3#
- 1...Rxb3
- 2.Qxf3#
- 1...Rxd6
- 2.Qxf3#
- 1...Bxb3
- 2.Qxf3#
- 1...Bxd6
- 2.Qxf3#
- 1...Sxb3
- 2.Qxf3#
- 1...Scxd3
- 2.Sd2#
- 1...Sbxd3
- 2.Sd2#
- 1...Sc4
- 2.Qxf3#
- 1...g4
- 2.Sd2#
- 1...Se2+!
- threat
- 1.R2d5?
- threat
- 2.Sd2#
- 2.Sxg5#
- 2.Bf5#
- 2.Re5#
- 1...Rxb3
- 2.Sxg5#
- 2.Bf5#
- 2.Re5#
- 1...Rxd6
- 2.Sd2#
- 2.Sxg5#
- 1...Bxb3
- 2.Sxg5#
- 2.Bf5#
- 2.Re5#
- 1...Bxd6
- 2.Sd2#
- 2.Sxg5#
- 1...Sxb3
- 2.Sxg5#
- 2.Bf5#
- 2.Re5#
- 1...Bh6
- 2.Sd2#
- 2.Bf5#
- 2.Re5#
- 1...Be7
- 2.Sd2#
- 2.Bf5#
- 2.Re5#
- 1...Bg7
- 2.Sd2#
- 2.Sxg5#
- 2.Bf5#
- 1...Scd3
- 2.Sd2#
- 2.Sxg5#
- 2.Bf5#
- 1...Sbd3
- 2.Sd2#
- 2.Sxg5#
- 2.Bf5#
- 1...Sc4
- 2.Sxg5#
- 2.Bf5#
- 1...g4
- 2.Sd2#
- 2.Sg5#
- 2.Bf5#
- 2.Re5#
- 1...Se2+!
- threat
- 1.Bf2?
- Keys
- 1.Bg4!
- threat
- 2.Re6#
- 2.Qxf3#
- 1...Se2+
- 2.Rxe2#
- 1...Rxb3
- 2.Re6#
- 1...Rxd6
- 2.Qxf3#
- 1...Bxb3
- 2.Qxf3#
- 1...Bxd6
- 2.Qxf3#
- 1...hxg4
- 2.Qh7#
- 1...Ra6
- 2.Qxf3#
- 1...Re8
- 2.Qxf3#
- 1...Bg7
- 2.Qxf3#
- 1...Scd3
- 2.Re2#
- 2.Qxf3#
- 1...Sbd3
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- threat
- 1.Bg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 2
- Sets
- S(a);CHECK,N_GUARD::R(C),XS(a)
- S(a);N_GUARD,XS(D)::R(C)
- S(a);N_GUARD::R(C)
- Tries
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::R(C),XS(a)
- R(d);XS(D)::R1(C)
- R(j);XR(F)::S(D)
- B(b);XS(D)::R1(C)
- B(k);XR(F)::R1(C)
- S(a);N_GUARD,XS(D)::R(C)
- R(d);::S(D)
- R(d);::R1(C)
- B(k);::S(D)
- S(a);N_GUARD::R(C)
- S(c);::R1(C)
- Refutation
- S(c);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::R(C),XS(a)
- R(j);XR(F)::QAB1(B),XP(e)
- B(b);XS(D)::QAB1(B),XP(e)
- B(k);XR(F)::QAB1(B),XP(e)
- S(c);::QAB1(B),XP(e)
- P(h);::S(D)
- Refutation
- R(d);XS(D)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(d);XS(D)::QAB1(B),XP(e)
- R(j);XR(F)::QAB1(B),XP(e)
- B(b);XS(D)::QAB1(B),XP(e)
- B(k);XR(F)::QAB1(B),XP(e)
- S(a);XS(D)::QAB1(B),XP(e)
- S(a);XR(C)::S(D)
- S(c);XR(C)::S(D)
- S(c);::QAB1(B),XP(e)
- P(h);::S(D)
- Refutation
- S(a);CHECK
- Try
- R(C);
- Threat
- DUALS(4)
- Refutation
- S(a);CHECK
- Try
- Actual
- B(G);
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::R(C),XS(a)
- R(d);XS(D)::R(F)
- R(j);XR(F)::QAB1(B),XP(e)
- B(b);XS(D)::QAB1(B),XP(e)
- B(k);XR(F)::QAB1(B),XP(e)
- P(i);OGATE,XB(G)::QAB(B)
- R(d);::QAB1(B),XP(e)
- R(j);::QAB1(B),XP(e)
- B(k);::QAB1(B),XP(e)
- S(c);::QAB1(B),XP(e)
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).