MESON Chess Problem Database
Problem Display
PID: 174155 (1K1R4/4p3/bBp2NQ1/Rq2k2r/4Nb1r/n2n3B/3P4/8 w - - 0 1)
Buchner, Richard
Arbeiter Schachzeitung, 1927
#2
9 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxa5
- 2.Bd4#
- 1...Qc5
- 2.Bc7#
- 1...Qd5
- 2.Sd7#
- 1...Rxh3
- 2.Sg4#
- 1...Rg4
- 2.Sxg4#
- 1...Rf5
- 2.Qxf5#
- 1...Rh6
- 2.Qf5#
- 1...Rh7
- 2.Qf5#
- 1...Rh8
- 2.Qf5#
- 1...Bg5
- 2.Qf5#
- 1...Bb7
- 2.Bd4#
- 2.Bc7#
- 1...Sc1
- 2.d4#
- 1...Se1
- 2.d4#
- 1...Sb2
- 2.d4#
- 1...Sf2
- 2.d4#
- 1...Sb4
- 2.d4#
- 1...Sc5
- 2.d4#
- 1...c5
- 2.Rd5#
- 1...exf6
- 2.Qe8#
- 1...Qxa5
- Tries
- 1.Ka8?
- threat
- 2.Bd4#
- 2.Bc7#
- 1...Qxa5
- 2.Bd4#
- 1...Rxh3
- 2.Sg4#
- 1...Bxd2
- 2.Bc7#
- 1...Rg4
- 2.Sxg4#
- 1...Rf5
- 2.Qxf5#
- 1...Bh2
- 2.Bc7#
- 1...Be3
- 2.Bc7#
- 1...Bg3
- 2.Bc7#
- 1...Bg5
- 2.Bc7#
- 2.Qf5#
- 1...Bh6
- 2.Bc7#
- 1...Qc5
- 2.Bc7#
- 1...Qd5
- 2.Sd7#
- 1...Sc2
- 2.Bc7#
- 1...Sc4
- 2.Bd4#
- 1...Sc5
- 2.Bc7#
- 2.d4#
- 1...c5
- 2.Bc7#
- 2.Rd5#
- 1...Bb7+!
- threat
- 1.Sg5?
- threat
- 2.Sf3#
- 2.Sf7#
- 2.Qf5#
- 1...Rxh3
- 2.Sg4#
- 1...Bxd2
- 2.Qf5#
- 1...Bxg5
- 2.Qf5#
- 1...Bh2
- 2.Qf5#
- 1...Be3
- 2.Qf5#
- 1...Bg3
- 2.Qf5#
- 1...Rg4
- 2.Sxg4#
- 1...Rh7
- 2.Sf3#
- 2.Qf5#
- 1...Bc8
- 2.Sf3#
- 2.Sf7#
- 1...Se1
- 2.Sf7#
- 2.Qf5#
- 2.d4#
- 1...e6
- 2.Sf3#
- 2.Sf7#
- 1...Rxg5!
- threat
- 1.Rxb5+?
- 1...Bxb5
- 2.Bd4#
- 2.Bc7#
- 1...Sc5
- 2.Bc7#
- 2.Rxc5#
- 2.d4#
- 1...cxb5
- 2.Bd4#
- 2.Bc7#
- 2.Rd5#
- 1...c5
- 2.Bc7#
- 2.Rd5#
- 1...Sxb5!
- 1...Bxb5
- 1.Rd5+?
- 1...Qxd5
- 2.Sd7#
- 1...cxd5!
- 1...Qxd5
- 1.Qxh5+?
- 1...Bg5
- 2.Qxg5#
- 1...Rxh5!
- 1...Bg5
- 1.Ka8?
- Keys
- 1.Sf2!
- threat
- 2.Sxd3#
- 1...Qxa5
- 2.Bd4#
- 1...Rxh3
- 2.S6g4#
- 1...Sxf2
- 2.d4#
- 1...Rg4
- 2.S6xg4#
- 1...Rf5
- 2.Qxf5#
- 1...Qc5
- 2.Bc7#
- 1...Qd5
- 2.Sd7#
- 1...Sc1
- 2.d4#
- 1...Se1
- 2.d4#
- 1...Sb2
- 2.d4#
- 1...Sb4
- 2.d4#
- 1...Sc5
- 2.d4#
- 1...c5
- 2.Rd5#
- threat
- 1.Sf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(e);N_PINB(E),N_SPINQ(e),XR(D)::B(E)
- Q(e);N_PINB(E)::B(E)
- Q(e);N_PINB(E)::S(F)
- R(d);N_GUARD,XB(B)::S(F)
- R(d);N_GUARD::S(F),XR(d)
- R(g);N_GUARD::QAR1(G),XR(g)
- R(g);N_GUARD::QAR1(G)
- R(g);N_GUARD,P_PINR(I)::QAR1(G)
- B(c);S_CUTR(g)::QAR1(G)
- S(b);OGATE::P(A)
- S(b);N_SPINQ(e),OGATE::P(A)
- P(i);N_GUARD,N_SPINQ(e),S_CUTQ(e)::R1(I)
- P(j);OGATEB,XS(F)::QAR(G)
- Tries
- Try
- K(H);N_SPINB(E),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(e);N_SPINQ(e),XR(D)::B(E)
- R(d);N_GUARD,XB(B)::S(F)
- B(c);XP(A)::B(E)
- R(d);N_GUARD::S(F),XR(d)
- R(g);N_GUARD::QAR1(G),XR(g)
- B(c);::B(E)
- Q(e);::B(E)
- Q(e);::S(F)
- S(a);::B(E)
- Refutation
- B(h);CHECK
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- R(d);N_GUARD,XB(B)::S(F)
- B(c);XP(A)::QAR1(G)
- B(c);XS(C)::QAR1(G)
- B(c);::QAR1(G)
- R(d);N_GUARD::S(F),XR(d)
- Refutation
- R(g);XS(C)
- Try
- R(D);CHECK,N_SPINB(E),XQ(e)
- Refutation
- S(a);XR(D)
- Try
- R(I);CHECK,N_PINQ(e)
- Vars
- Q(e);N_PINB(E),P_SPINQ(e),XR(I)::S(F)
- Refutation
- P(i);XR(I)
- Try
- Q(G);CHECK,XR(g)
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAR2(G),XB(c)
- Refutation
- R(d);XQ(G)
- Try
- Actual
- S(C);
- Threat
- S(C),XS(b)
- Vars
- Q(e);N_PINB(E),N_SPINQ(e),XR(D)::B(E)
- R(d);N_GUARD,XB(B)::S(F)
- S(b);OGATE,XS(C)::P(A)
- R(d);N_GUARD::S(F),XR(d)
- R(g);N_GUARD::QAR1(G),XR(g)
- Q(e);N_PINB(E)::B(E)
- Q(e);N_PINB(E)::S(F)
- S(b);OGATE::P(A)
- S(b);N_SPINQ(e),OGATE::P(A)
- P(i);N_GUARD,N_SPINQ(e),S_CUTQ(e)::R1(I)
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).