MESON Chess Problem Database
Problem Display
PID: 6929 (8/5p2/QK1pP3/5N2/2R1N2r/1p1kP1p1/1rR4b/7b w - - 0 1)
Andersson, Gunnar
1st Prize, Vart Hem, 1934
#2
8 + 9
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Rd2#
- 1...Rxc2
- 2.Rd4#
- 1...Rxe4
- 2.R4c3#
- 1...Bxe4
- 2.R4c3#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...bxc2+
- 2.Rb4#
- 1...g2
- 2.Sf2#
- 1...d5
- 2.Sc5#
- 1...Rb1
- Tries
- 1.Ka5?
- threat
- 2.Qxd6#
- 1...Rxc2
- 2.Rd4#
- 1...Rxe4
- 2.R4c3#
- 1...Bxe4
- 2.R4c3#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...bxc2
- 2.Rb4#
- 2.Rd4#
- 1...g2
- 2.Sf2#
- 1...d5
- 2.Sc5#
- 1...Ra2+!
- threat
- 1.Ka7?
- threat
- 2.Qxd6#
- 1...Rxc2
- 2.Rd4#
- 1...Rxe4
- 2.R4c3#
- 1...Bxe4
- 2.R4c3#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...bxc2
- 2.Rb4#
- 2.Rd4#
- 1...g2
- 2.Sf2#
- 1...d5
- 2.Sc5#
- 1...Ra2!
- threat
- 1.Kc7?
- threat
- 2.Qxd6#
- 1...Rxe4
- 2.R4c3#
- 1...Bxe4
- 2.R4c3#
- 2.Rc5#
- 2.Rc6#
- 1...bxc2
- 2.Rb4#
- 2.Rd4#
- 1...g2
- 2.Sf2#
- 1...d5
- 2.Sc5#
- 1...Rxc2!
- threat
- 1.Rc1?
- threat
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 1...Rxe4
- 2.Rd4#
- 1...Bxe4
- 2.R4c2#
- 2.Rd4#
- 1...Ra2
- 2.Ra4#
- 2.Rd4#
- 1...Rc2
- 2.Rd4#
- 1...Ke2!
- threat
- 1.Rxb2?
- threat
- 2.Rd2#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 1...Bxe4
- 2.Rc1#
- 2.Rcc2#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...Rxe4!
- threat
- 1.Qb5?
- threat
- 2.Qd5#
- 1...Rxc2
- 2.Rd4#
- 1...Rxe4
- 2.R4c3#
- 1...Bxe4
- 2.R4c3#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...bxc2
- 2.Rb4#
- 2.Rd4#
- 1...d5
- 2.Sc5#
- 2.Qxd5#
- 1...fxe6!
- threat
- 1.Qa3?
- threat
- 2.Qxd6#
- 1...Rxe4
- 2.R4c3#
- 1...Bxe4
- 2.R4c3#
- 1...g2
- 2.Sf2#
- 1...d5
- 2.Sc5#
- 1...Rxc2!
- threat
- 1.Ka5?
- Keys
- 1.Kb7!
- threat
- 2.Qxd6#
- 1...Bxe4+
- 2.Rc6#
- 1...bxc2+
- 2.Rb4#
- 1...Rxc2
- 2.Rd4#
- 1...Rxe4
- 2.R4c3#
- 1...g2
- 2.Sf2#
- 1...d5
- 2.Sc5#
- threat
- 1.Kb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(b);N_GUARD::R1(A)
- R(b);SBLOCK,XR(A)::QAB(F)+R(C),DCHECK
- R(g);SBLOCK,XS(D)::QAB(F)+R(C),DCHECK
- P(d);CHECK,SBLOCK,XR(A)::QAB(F)+R(C)
- P(f);N_GUARD::S(D)
- P(h);N_GUARD::S(D)
- Tries
- Try
- K(G);S_FLIGHT
- Threat
- QAR(F),XP(h)
- Vars
- R(b);SBLOCK,XR(A)::QAB(F)+R(C),DCHECK
- R(g);SBLOCK,XS(D)::QAB(F)+R(C),DCHECK
- P(f);N_GUARD::S(D)
- P(h);N_GUARD::S(D)
- Refutation
- R(b);CHECK
- Try
- K(G);S_FLIGHT
- Threat
- QAR(F),XP(h)
- Vars
- R(b);SBLOCK,XR(A)::QAB(F)+R(C),DCHECK
- R(g);SBLOCK,XS(D)::QAB(F)+R(C),DCHECK
- P(f);N_GUARD::S(D)
- P(h);N_GUARD::S(D)
- Refutation
- R(b);P_PINQ(F)
- Try
- K(G);S_FLIGHT
- Threat
- QAR(F),XP(h)
- Vars
- R(g);SBLOCK,XS(D)::QAB(F)+R(C),DCHECK
- P(f);N_GUARD::S(D)
- P(h);N_GUARD::S(D)
- Refutation
- R(b);P_PINR(C),XR(A)
- Try
- R(A);
- Threat
- DUALS(3)
- Vars
- R(g);XS(D)::QAB(F)+R(C),DCHECK
- R(b);::QAB(F)+R(C),DCHECK
- Refutation
- K(e);S_FLIGHT
- Try
- R(A);XR(b)
- Threat
- DUALS(4)
- Refutation
- R(g);XS(D)
- Try
- Q(F);
- Threat
- QAR2(F)
- Vars
- R(b);SBLOCK,XR(A)::QAB(F)+R(C),DCHECK
- R(g);SBLOCK,XS(D)::QAB(F)+R(C),DCHECK
- Refutation
- P(i);XP(H)
- Try
- Q(F);P_PINP(d)
- Threat
- QAR(F),XP(h)
- Vars
- R(g);SBLOCK,XS(D)::R1(C)
- B(a);SBLOCK,XS(D)::R1(C)
- P(f);N_GUARD::S(D)
- P(h);N_GUARD::S(D)
- Refutation
- R(b);XR(A)
- Try
- Actual
- K(G);P-FLIGHT,P_SPINS(D)
- Threat
- QAR(F),XP(h)
- Vars
- B(a);CHECK,SBLOCK,XS(D)::QAB(F)+R(C)
- P(d);CHECK,SBLOCK,XR(A)::QAB(F)+R(C)
- R(b);SBLOCK,XR(A)::QAB(F)+R(C),DCHECK
- R(g);SBLOCK,XS(D)::QAB(F)+R(C),DCHECK
- P(f);N_PINS(D)::S(D)
- P(h);N_PINS(D)::S(D)
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).