MESON Chess Problem Database
Problem Display
PID: 248102 (2N1R2K/1rR5/Nrb1n3/3k1n1Q/3Pp2p/2PB2pq/8/8 w - - 0 1)
Blikeng, Bjarne
Thema Danicum, 1980
#2
9 + 10
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qg2
- 2.Qxf5#
- 1...Qh1
- 2.Qxf5#
- 1...Qh2
- 2.Qxf5#
- 1...Ba4
- 2.Bc4#
- 1...Bb5
- 2.Sb4#
- 1...Bd7
- 2.Bc4#
- 1...Bxe8
- 2.Bc4#
- 1...Sxd4
- 2.c4#
- 1...Sf4
- 2.Re5#
- 1...Sc5
- 2.Re5#
- 1...Sg5
- 2.Re5#
- 1...Sxc7
- 2.Re5#
- 1...Sg7
- 2.Re5#
- 1...Sd8
- 2.Re5#
- 1...Sf8
- 2.Re5#
- 1...e3
- 2.Qf3#
- 1...Qg2
- Tries
- 1.Rxe6?
- threat
- 2.Re5#
- 2.Rd6#
- 1...Kxe6
- 2.Qf7#
- 1...Ba4
- 2.Bc4#
- 2.Re5#
- 1...Bb5
- 2.Re5#
- 1...Bd7
- 2.Bc4#
- 2.Re5#
- 1...Be8
- 2.Bc4#
- 2.Re5#
- 1...exd3!
- threat
- 1.Rd8+?
- 1...Bd7
- 2.Bc4#
- 1...Sxd8!
- 1...Bd7
- 1.Qe2?
- threat
- 2.Bc4#
- 2.Bxe4#
- 2.Qxe4#
- 1...Sfxd4
- 2.Qxe4#
- 1...exd3
- 2.Qxe6#
- 1...Qg2
- 2.Bc4#
- 1...Qg4
- 2.Bc4#
- 1...Qh1
- 2.Bc4#
- 1...Rb4
- 2.Bxe4#
- 2.Qxe4#
- 1...Bb5
- 2.Sb4#
- 2.Bxe4#
- 2.Qxe4#
- 1...Sd6
- 2.Se7#
- 1...Sc5
- 2.Bc4#
- 2.Re5#
- 1...Sg5
- 2.Bc4#
- 2.Re5#
- 1...e3
- 2.Qf3#
- 1...Se3!
- threat
- 1.Rxe6?
- Keys
- 1.Qg6!
- threat
- 2.Qxe6#
- 1...Bxe8
- 2.Bc4#
- 1...Sfxd4
- 2.Qxe4#
- 1...Sexd4
- 2.c4#
- 1...Sxc7
- 2.Re5#
- 1...Ba4
- 2.Bc4#
- 1...Bb5
- 2.Sb4#
- 1...Bd7
- 2.Bc4#
- 1...Se3
- 2.Qxe4#
- 1...Sd6
- 2.Se7#
- 1...Sh6
- 2.Qxe4#
- 1...Se7
- 2.Qxe4#
- 1...Sfg7
- 2.Qxe4#
- 1...Sf4
- 2.Re5#
- 1...Sc5
- 2.Re5#
- 1...Sg5
- 2.Re5#
- 1...Seg7
- 2.Re5#
- 1...Sd8
- 2.Re5#
- 1...Sf8
- 2.Re5#
- threat
- 1.Qg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 4
- Sets
- Q(b);N_GUARD::QAR2(D),XS(f)
- B(h);::B(B)
- B(h);S_CUTR(g)::S(E)
- B(h);XR(H)::B(B)
- S(i);SBLOCK,XP(C)::P(A)
- S(i);OGATE::R1(H)
- S(i);N_SPINS(f),OGATE::R1(H)
- S(i);OGATE,XR(F)::R1(H)
- P(c);OGATEB::QAB(D)
- Tries
- Try
- R(H);XS(i)
- Threat
- DUALS(2)
- Vars
- K(e);N_SPINS(f),OGATEB,S_FLIGHT,XR(H)::QAB1(D)
- B(h);::R1(H)
- Refutation
- P(c);XB(B)
- Try
- R(H);CHECK
- Vars
- B(h);P_SPINB(h)::B(B)
- Refutation
- S(i);XR(H)
- Try
- Q(D);N_PINS(f)
- Threat
- DUALS(3)
- Vars
- S(f);XP(C)::QAB1(D),XP(c)
- P(c);OGATE,XB(B)::QAB1(D),XS(i)
- Q(b);::B(B)
- S(f);N_GUARD,SBLOCK::S(G)
- P(c);OGATEB::QAB(D)
- Refutation
- S(f);
- Try
- Actual
- Q(D);N_PINS(f)
- Threat
- QAB1(D),XS(i)
- Vars
- B(h);XR(H)::B(B)
- S(f);OGATE,XP(C)::QAB1(D),XP(c)
- S(i);SBLOCK,XP(C)::P(A)
- S(i);OGATE,XR(F)::R1(H)
- B(h);::B(B)
- B(h);S_CUTR(g)::S(E)
- S(f);OGATE::QAB1(D),XP(c)
- S(f);N_GUARD,SBLOCK::S(G)
- S(i);OGATE::R1(H)
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).