MESON Chess Problem Database
Problem Display
PID: 174167 (4Nn2/2p3q1/2R3P1/1K1kBr2/1p2b1Q1/3Np3/8/3R4 w - - 0 1)
Buchner, Richard
Arbeiter Schach Internationale, 1925
#2
8 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxe5
- 2.Sxb4#
- 2.Sf4#
- 1...Qf6
- 2.Sxc7#
- 1...Qh6
- 2.Sxc7#
- 1...Qh8
- 2.Sxc7#
- 1...Qxg6
- 2.Sxc7#
- 1...Qg8
- 2.Sxc7#
- 1...Rf1
- 2.Rc5#
- 1...Rf2
- 2.Rc5#
- 1...Rf3
- 2.Rc5#
- 1...Rf4
- 2.Rc5#
- 1...Rxe5
- 2.Sxb4#
- 2.Sf4#
- 1...Rg5
- 2.Rc5#
- 1...Rh5
- 2.Rc5#
- 1...Rf6
- 2.Rc5#
- 1...Rf7
- 2.Rc5#
- 1...Bh1
- 2.Qc4#
- 2.Qd4#
- 1...Bg2
- 2.Qc4#
- 2.Qd4#
- 1...Bf3
- 2.Qc4#
- 2.Qd4#
- 1...Sd7
- 2.Sxc7#
- 1...Qxe5
- Tries
- 1.Sb2+?
- 1...Kxe5
- 2.Sc4#
- 1...Bd3+!
- 1...Kxe5
- 1.Sf2+?
- 1...Kxe5
- 2.Qxe4#
- 1...Bd3+!
- 1...Kxe5
- 1.Sc5+?
- 1...Kxe5
- 2.Qxe4#
- 1...Bd3+!
- 1...Kxe5
- 1.Sf6+?
- 1...Rxf6
- 2.Rc5#
- 1...Qxf6!
- 1...Rxf6
- 1.Bh2?
- threat
- 2.Sxb4#
- 1...Kd4+
- 2.Se5#
- 1...Bxd3+
- 2.Qc4#
- 1...b3
- 2.Sb4#
- 1...Rf4!
- threat
- 1.Bg3?
- threat
- 2.Sxb4#
- 1...Kd4+
- 2.Se5#
- 1...Bxd3+
- 2.Qc4#
- 1...b3
- 2.Sb4#
- 1...Rf4!
- threat
- 1.Bxc7?
- threat
- 2.Sxb4#
- 2.Sf4#
- 2.Rd6#
- 1...Kd4+
- 2.Se5#
- 1...Bxd3+
- 2.Qc4#
- 1...Qxg6
- 2.Sxb4#
- 2.Sf4#
- 1...Rf4
- 2.Sxb4#
- 2.Sxf4#
- 2.Rd6#
- 1...Qd4
- 2.Sxb4#
- 2.Rd6#
- 1...Qe5
- 2.Sxb4#
- 2.Sf4#
- 1...Qf6
- 2.Sxb4#
- 2.Sf4#
- 1...Qd7
- 2.Sxb4#
- 2.Sf4#
- 1...Qe7
- 2.Sxb4#
- 2.Sf4#
- 1...Rf6
- 2.Sxb4#
- 2.Sf4#
- 1...Bh1
- 2.Sxb4#
- 2.Se5#
- 2.Rd6#
- 2.Qc4#
- 1...Bg2
- 2.Sxb4#
- 2.Se5#
- 2.Rd6#
- 2.Qc4#
- 1...Bf3
- 2.Sxb4#
- 2.Rd6#
- 2.Qc4#
- 1...b3
- 2.Sb4#
- 2.Sf4#
- 2.Rd6#
- 1...Qxc7!
- threat
- 1.Bxg7?
- threat
- 2.Sxb4#
- 2.Sf4#
- 2.Sxc7#
- 1...Bxd3+
- 2.Rxd3#
- 2.Qc4#
- 1...Re5
- 2.Sxb4#
- 2.Sf4#
- 1...Rf4
- 2.Sxb4#
- 2.Sxf4#
- 2.Sxc7#
- 2.Rc5#
- 1...Rf7
- 2.Sxb4#
- 2.Sf4#
- 2.Rc5#
- 1...Bh1
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sxb4#
- 2.Sc5#
- 2.Se5#
- 2.Sxc7#
- 2.Qxf5#
- 2.Qc4#
- 2.Qd4#
- 1...Bg2
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sxb4#
- 2.Sc5#
- 2.Se5#
- 2.Sxc7#
- 2.Qxf5#
- 2.Qc4#
- 2.Qd4#
- 1...Bf3
- 2.Sxb4#
- 2.Sxc7#
- 2.Qxf5#
- 2.Qc4#
- 2.Qd4#
- 1...Se6
- 2.Sxb4#
- 2.Sf4#
- 1...b3
- 2.Sb4#
- 2.Sf4#
- 2.Sxc7#
- 1...Rf6!
- threat
- 1.Qxf5?
- threat
- 2.Sxb4#
- 2.Sf4#
- 2.Rc5#
- 1...Bxd3+
- 2.Rxd3#
- 1...Qxe5
- 2.Sxb4#
- 2.Sf4#
- 2.Qxe5#
- 1...Qd7
- 2.Sxb4#
- 2.Sf4#
- 2.Sf6#
- 1...Qe7
- 2.Sxb4#
- 2.Sf4#
- 1...Se6
- 2.Sxb4#
- 2.Sf4#
- 2.Qxe6#
- 1...Sd7
- 2.Sxb4#
- 2.Sf4#
- 2.Sxc7#
- 2.Qe6#
- 1...b3
- 2.Sb4#
- 2.Sf4#
- 2.Rc5#
- 1...Bxf5!
- threat
- 1.Qf4?
- threat
- 2.Sxb4#
- 1...Bxd3+
- 2.Rxd3#
- 1...b3
- 2.Sb4#
- 1...Rxf4!
- threat
- 1.Sb2+?
- Keys
- 1.Bd6!
- threat
- 2.Sf4#
- 1...Kd4+
- 2.Se5#
- 1...Ke6+
- 2.Sc5#
- 1...Bxd3+
- 2.Qc4#
- 1...cxd6
- 2.Rxd6#
- 1...Rf4
- 2.Sxb4#
- 2.Sxf4#
- 1...Qd4
- 2.Sxc7#
- 1...Bh1
- 2.Qc4#
- 1...Bg2
- 2.Qc4#
- 1...Bf3
- 2.Qc4#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 14
- Sets
- Q(g);N_GUARD::S(H),XP(f)
- Q(g);N_GUARD,XP(G)::S(H),XP(f)
- R(e);::R1(F)
- S(h);S_CUTQ(g)::S(H),XP(f)
- Tries
- Try
- S(B);CHECK
- Vars
- K(d);P-FLIGHT,XB(E)::S(B)
- Refutation
- B(c);CHECK,P_SPINB(c)
- Try
- S(B);CHECK
- Vars
- K(d);P-FLIGHT,XB(E)::QAR1(C),XB(c)
- Refutation
- B(c);CHECK,P_SPINB(c)
- Try
- S(B);CHECK
- Vars
- K(d);P-FLIGHT,XB(E)::QAR1(C),XB(c)
- Refutation
- B(c);CHECK,P_SPINB(c)
- Try
- S(H);CHECK
- Vars
- R(e);XS(H)::R1(F)
- Refutation
- Q(g);XS(H)
- Try
- B(E);
- Threat
- R(A)+S(B),DCHECK,XP(b)
- Vars
- K(d);CHECK,P-FLIGHT,P_SPINB(c)::R(A)+S(B)
- B(c);CHECK,OGATE,P_SPINB(c),XS(B)::QAB1(C)
- P(b);::R(A)+S(B),DCHECK
- Refutation
- R(e);
- Try
- B(E);
- Threat
- R(A)+S(B),DCHECK,XP(b)
- Vars
- K(d);CHECK,P-FLIGHT,P_SPINB(c)::R(A)+S(B)
- B(c);CHECK,OGATE,P_SPINB(c),XS(B)::QAB1(C)
- P(b);::R(A)+S(B),DCHECK
- Refutation
- R(e);
- Try
- B(E);XP(f)
- Threat
- DUALS(3)
- Vars
- K(d);CHECK,P-FLIGHT,P_SPINB(c)::R(A)+S(B)
- B(c);CHECK,OGATE,P_SPINB(c),XS(B)::QAB1(C)
- Refutation
- Q(g);XB(E)
- Try
- B(E);XQ(g)
- Threat
- DUALS(3)
- Refutation
- R(e);
- Try
- Q(C);XR(e)
- Threat
- DUALS(3)
- Vars
- B(c);CHECK,OGATE,P_SPINB(c),XS(B)::R(A),XB(c)
- Refutation
- B(c);XQ(C)
- Try
- Q(C);
- Threat
- R(A)+S(B),DCHECK,XP(b)
- Vars
- B(c);CHECK,OGATE,P_SPINB(c),XS(B)::R(A),XB(c)
- P(b);::R(A)+S(B),DCHECK
- Refutation
- R(e);XQ(C)
- Try
- Actual
- B(E);
- Threat
- R(A)+S(B),DCHECK
- Vars
- K(d);CHECK,P-FLIGHT,P_SPINB(c)::R(A)+S(B)
- K(d);CHECK,P_SPINR(e),S_FLIGHT::S(B)
- B(c);CHECK,OGATE,P_SPINB(c),XS(B)::QAB1(C)
- P(f);OGATE,XB(E)::R1(F),XP(f)
- Q(g);N_GUARD,SBLOCK::S(H),XP(f)
- B(c);OGATE::QAB1(C)
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).