MESON Chess Problem Database
Problem Display
PID: 245130 (6r1/8/5RB1/2ppk1P1/r6Q/2P2R2/3NPNq1/1bK2n2 w - - 0 1)
Labai, Zoltan
Scacchi e Scienze Applicate, 1997
#2
10 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxf3
- 2.Sxf3#
- 1...Ra1
- 2.Qf4#
- 1...Ra2
- 2.Qf4#
- 1...Ra3
- 2.Qf4#
- 1...Re4
- 2.R3f5#
- 1...Rf4
- 2.Qxf4#
- 1...Ra5
- 2.Qf4#
- 1...Ra6
- 2.Qf4#
- 1...Ra7
- 2.Qf4#
- 1...Raa8
- 2.Qf4#
- 1...Ba2
- 2.Sd3#
- 2.R3f5#
- 1...Bd3
- 2.Sxd3#
- 1...Be4
- 2.Qf4#
- 1...Bf5
- 2.R3xf5#
- 1...c4
- 2.Qd4#
- 2.Qf4#
- 1...Qxf3
- Tries
- 1.Sde4?
- threat
- 2.R3f5#
- 2.Qf4#
- 1...Qxg5+
- 2.Qxg5#
- 1...Qxf2
- 2.Qf4#
- 1...Rxe4
- 2.R3f5#
- 1...Bxe4
- 2.Qf4#
- 1...dxe4
- 2.R3f5#
- 1...d4
- 2.R3f5#
- 1...Qh3
- 2.Qf4#
- 1...Qh2
- 2.Sg4#
- 2.R3f5#
- 1...Qg3
- 2.R3f5#
- 1...Qg4
- 2.Sxg4#
- 1...Se3
- 2.Qf4#
- 1...Sg3
- 2.Sg4#
- 2.Qf4#
- 1...Qxf3!
- threat
- 1.Sfe4?
- threat
- 2.R3f5#
- 2.Qf4#
- 1...Qxf3
- 2.Sxf3#
- 1...Qxg5
- 2.Qxg5#
- 1...Rxe4
- 2.R3f5#
- 1...Bxe4
- 2.Qf4#
- 1...dxe4
- 2.R3f5#
- 1...d4
- 2.R3f5#
- 1...Qh3
- 2.Qf4#
- 1...Qf2
- 2.Qf4#
- 1...Qh2
- 2.R3f5#
- 1...Qg3
- 2.R3f5#
- 1...Se3
- 2.Qf4#
- 1...Sg3
- 2.Qf4#
- 1...Qg4!
- threat
- 1.Bxb1?
- threat
- 2.Sd3#
- 2.R3f5#
- 1...Qxf3
- 2.Sxf3#
- 1...Qxg5
- 2.Sd3#
- 1...Rxg5
- 2.Sd3#
- 1...d4
- 2.R3f5#
- 2.Qe4#
- 1...Qh3
- 2.Sd3#
- 1...Qg4
- 2.Sd3#
- 1...Rd4
- 2.R3f5#
- 1...Rf4
- 2.Sd3#
- 2.Qxf4#
- 1...Se3
- 2.Sd3#
- 1...Sg3
- 2.Sd3#
- 1...c4
- 2.R3f5#
- 2.Qd4#
- 2.Qf4#
- 1...Qxf2!
- threat
- 1.Be4?
- threat
- 2.R3f5#
- 2.Qf4#
- 1...Qxf3
- 2.Sxf3#
- 1...Qxf2
- 2.Qf4#
- 1...Rxe4
- 2.R3f5#
- 1...Rxg5
- 2.Qf4#
- 1...Bxe4
- 2.Qf4#
- 1...dxe4
- 2.R3f5#
- 1...Qh3
- 2.Qf4#
- 1...Qh2
- 2.Sg4#
- 2.R3f5#
- 1...Qg3
- 2.R3f5#
- 1...Qg4
- 2.Sxg4#
- 1...Se3
- 2.Qf4#
- 1...Sg3
- 2.Sg4#
- 2.Qf4#
- 1...Qxg5!
- threat
- 1.Re3+?
- 1...Qe4
- 2.Sf3#
- 2.Sg4#
- 2.Qf4#
- 1...Re4
- 2.Qf4#
- 1...Be4
- 2.Sd3#
- 2.Qf4#
- 1...Sxe3!
- 1...Qe4
- 1.Qe4+?
- 1...Rxe4
- 2.R3f5#
- 1...dxe4
- 2.R3f5#
- 1...Bxe4!
- 1...Rxe4
- 1.Sde4?
- Keys
- 1.e4!
- threat
- 2.R3f5#
- 2.Qf4#
- 1...Qxf3
- 2.Sxf3#
- 1...Qxf2
- 2.Qf4#
- 1...Qxg5
- 2.Qxg5#
- 1...Rxe4
- 2.R3f5#
- 1...Bxe4
- 2.Qf4#
- 1...dxe4
- 2.R3f5#
- 1...Qg4
- 2.Sxg4#
- 1...Qh3
- 2.Qf4#
- 1...Qh2
- 2.Sg4#
- 2.R3f5#
- 1...Qg3
- 2.R3f5#
- 1...Se3
- 2.Qf4#
- 1...Sg3
- 2.Sg4#
- 2.Qf4#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 10
- Sets
- Q(c);XR(F)::S(B),XQ(c)
- R(d);N_GUARD::QAB1(G)
- R(d);S_CUTB(a)::R1(F)
- R(d);N_GUARD::QAB1(G),XR(d)
- B(a);N_GUARD::S(D),XB(a)
- B(a);S_CUTR(d)::QAB1(G)
- B(a);N_GUARD::R1(F),XB(a)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,OGATE,XP(H)::QAR2(G),XQ(c)
- Q(c);XS(D)::QAB1(G)
- R(d);XS(B)::R1(F)
- B(a);XS(B)::QAB1(G)
- P(f);XS(B)::R1(F)
- P(f);::R1(F)
- Q(c);::QAB1(G)
- Q(c);::R1(F)
- Q(c);N_GUARD::S(D),XQ(c)
- S(b);::QAB1(G)
- Refutation
- Q(c);XR(F)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(c);XR(F)::S(B),XQ(c)
- Q(c);OGATE,P_PINS(B),XP(H)::QAR2(G),XQ(c)
- R(d);XS(D)::R1(F)
- B(a);XS(D)::QAB1(G)
- P(f);XS(D)::R1(F)
- P(f);::R1(F)
- Q(c);::QAB1(G)
- Q(c);::R1(F)
- S(b);::QAB1(G)
- Refutation
- Q(c);
- Try
- B(J);XB(a)
- Threat
- DUALS(2)
- Vars
- Q(c);XR(F)::S(B),XQ(c)
- Q(c);P_PINS(B),XP(H)::S(D)
- R(h);XP(H)::S(D)
- Q(c);::S(D)
- R(d);::R1(F)
- S(b);::S(D)
- Refutation
- Q(c);XS(D)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- Q(c);XR(F)::S(B),XQ(c)
- Q(c);XS(D)::QAB1(G)
- R(d);XB(J)::R1(F)
- R(h);XP(H)::QAB1(G)
- B(a);XB(J)::QAB1(G)
- P(f);XB(J)::R1(F)
- Q(c);::QAB1(G)
- Q(c);::R1(F)
- Q(c);N_GUARD::S(D),XQ(c)
- S(b);::QAB1(G)
- Refutation
- Q(c);P_PINS(B),XP(H)
- Try
- R(F);CHECK
- Vars
- R(d);P_SPINR(d)::QAB1(G)
- Refutation
- S(b);XR(F)
- Try
- Q(G);CHECK
- Vars
- R(d);XQ(G)::R1(F)
- P(f);XQ(G)::R1(F)
- Refutation
- B(a);XQ(G)
- Try
- Actual
- P(C);
- Threat
- DUALS(2)
- Vars
- Q(c);XR(F)::S(B),XQ(c)
- Q(c);XS(D)::QAB1(G)
- Q(c);OGATE,P_PINS(B),XP(H)::QAR2(G),XQ(c)
- R(d);XP(C)::R1(F)
- B(a);XP(C)::QAB1(G)
- P(f);XP(C)::R1(F)
- Q(c);N_GUARD::S(D),XQ(c)
- Q(c);::QAB1(G)
- Q(c);::R1(F)
- S(b);::QAB1(G)
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).