MESON Chess Problem Database
Problem Display
PID: 193917 (3R4/4pNQ1/4Pp1P/3r3b/2K1k2r/3N1p1B/4P3/2B4n w - - 0 1)
Hansen, Lorenz
Pittsburgh Gazette-Times, 1916
#2
10 + 8
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxd3
- 2.exd3#
- 1...Rd4+
- 2.Rxd4#
- 1...Ra5
- 2.Rd4#
- 1...Rb5
- 2.Rd4#
- 1...Rc5+
- 2.Sxc5#
- 1...Re5
- 2.Rd4#
- 1...Rf5
- 2.Rd4#
- 1...Rg5
- 2.Rd4#
- 1...Rd6
- 2.Sc5#
- 1...Rd7
- 2.Sc5#
- 1...Rxd8
- 2.Sc5#
- 1...Sf2
- 2.Sxf2#
- 1...Sg3
- 2.Sf2#
- 1...f5
- 2.Sg5#
- 1...Rxd3
- Tries
- 1.Sg5+?
- 1...Rxg5
- 2.Rd4#
- 1...fxg5!
- 1...Rxg5
- 1.Bf5+?
- 1...Rxf5
- 2.Rd4#
- 1...Kxf5+!
- 1...Rxf5
- 1.Rxd5?
- threat
- 2.Sc5#
- 2.Bf5#
- 2.Rd4#
- 1...Rxh3
- 2.Sc5#
- 1...Rf4
- 2.Sc5#
- 2.Rd4#
- 1...Rg4
- 2.Sc5#
- 1...Bg4
- 2.Sc5#
- 1...Bg6
- 2.Sc5#
- 2.Rd4#
- 1...Sg3
- 2.Sf2#
- 2.Sc5#
- 2.Rd4#
- 1...f5
- 2.Sc5#
- 2.Sg5#
- 2.Bxf5#
- 2.Rd4#
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 1...fxe2!
- threat
- 1.Qg5?
- threat
- 2.Qe3#
- 2.Qxd5#
- 1...Rd4+
- 2.Rxd4#
- 1...Rc5+
- 2.Sxc5#
- 1...Rxh3
- 2.Qf4#
- 2.Qxd5#
- 1...Rxd3
- 2.Bf5#
- 2.Qf5#
- 2.exd3#
- 1...Rxg5
- 2.Rd4#
- 1...Rxd8
- 2.Sc5#
- 2.Bf5#
- 2.Qe3#
- 2.Qf5#
- 1...Rf4
- 2.Qxf4#
- 2.Qxd5#
- 1...Rg4
- 2.Qxd5#
- 1...Ra5
- 2.Rd4#
- 2.Qe3#
- 1...Rb5
- 2.Rd4#
- 2.Qe3#
- 1...Re5
- 2.Rd4#
- 2.Qe3#
- 1...Rf5
- 2.Bxf5#
- 2.Rd4#
- 2.Qe3#
- 2.Qxf5#
- 1...Rd6
- 2.Sc5#
- 2.Bf5#
- 2.Qe3#
- 2.Qf5#
- 1...Rd7
- 2.Sc5#
- 2.Bf5#
- 2.Qe3#
- 2.Qf5#
- 1...Bg4
- 2.Qf4#
- 2.Qxd5#
- 1...f5
- 2.Qe3#
- 1...fxg5!
- threat
- 1.Qg6+?
- 1...Rf5
- 2.Sc5#
- 2.Bxf5#
- 2.Rd4#
- 2.Qxf5#
- 1...f5
- 2.Sg5#
- 1...Bxg6!
- 1...Rf5
- 1.Qh7+?
- 1...Rf5
- 2.Sc5#
- 2.Bxf5#
- 2.Rd4#
- 2.Qxf5#
- 1...f5
- 2.Sg5#
- 1...Bg6!
- 1...Rf5
- 1.Sg5+?
- Keys
- 1.Qg3!
- 1...Rd4+
- 2.Rxd4#
- 1...Rc5+
- 2.Sxc5#
- 1...Rxh3
- 2.Qf4#
- 1...Rxd3
- 2.exd3#
- 1...Rxd8
- 2.Sc5#
- 1...Bxf7
- 2.Qxh4#
- 2.Qxf3#
- 2.exf3#
- 1...Sxg3
- 2.Sf2#
- 1...fxe2
- 2.Qe3#
- 1...Rg4
- 2.Qxf3#
- 1...Bg4
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Ra5
- 2.Rd4#
- 1...Rb5
- 2.Rd4#
- 1...Re5
- 2.Rd4#
- 1...Rf5
- 2.Rd4#
- 1...Rg5
- 2.Rd4#
- 1...Rd6
- 2.Sc5#
- 1...Rd7
- 2.Sc5#
- 1...Bg6
- 2.Qxh4#
- 2.Qxf3#
- 2.exf3#
- 1...Sf2
- 2.Sxf2#
- 1...f2
- 2.Qe3#
- 1...f5
- 2.Sg5#
- 1...Rd4+
- 1.Qg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(e);OGATE,XS(C)::P(B),XR(e)
- R(e);CHECK,OGATE::R1(J),XR(e)
- R(e);OGATE::R1(J)
- R(e);CHECK,N_GUARD::S(C),XR(e)
- R(e);N_GUARD::S(C)
- R(e);N_GUARD,XR(J)::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(a);N_GUARD::S(C)
- P(g);N_GUARD,S_CUTR(e)::S(H)
- Tries
- Try
- S(H);CHECK
- Vars
- R(e);OGATE,XS(H)::R1(J)
- Refutation
- P(g);XS(H)
- Try
- B(D);CHECK
- Vars
- R(e);OGATE,SBLOCK,XB(D)::R1(J)
- Refutation
- K(c);CHECK,S_FLIGHT,XB(D)
- Try
- R(J);XR(e)
- Threat
- DUALS(3)
- Vars
- R(d);XB(D)::S(C)
- R(d);::S(C)
- B(f);::S(C)
- Refutation
- P(b);XP(B)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,OGATE::R1(J),XR(e)
- R(e);CHECK,N_GUARD::S(C),XR(e)
- R(e);OGATE,XQ(I)::R1(J)
- R(d);::QAB1(I),XR(e)
- P(g);::QAR1(I)
- Refutation
- P(g);XQ(I)
- Try
- Q(I);CHECK
- Vars
- P(g);P_SPINP(g)::S(H)
- Refutation
- B(f);XQ(I)
- Try
- Q(I);CHECK
- Vars
- P(g);P_SPINP(g)::S(H)
- Refutation
- B(f);P_SPINB(f)
- Try
- Actual
- Q(I);
- Vars
- R(e);CHECK,OGATE::R1(J),XR(e)
- R(e);CHECK,N_GUARD::S(C),XR(e)
- R(d);N_GUARD,XB(D)::QAR1(I)
- R(e);OGATE,XS(C)::P(B),XR(e)
- R(e);N_GUARD,XR(J)::S(C)
- S(a);N_GUARD,XQ(I)::S(C)
- P(b);OGATE,XP(B)::QAR1(I)
- R(d);S_CUTB(f)::QAB1(I),XP(b)
- B(f);S_CUTR(d)::QAR1(I)
- R(d);N_GUARD::QAR1(I),XR(d)
- R(e);OGATE::R1(J)
- R(e);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(b);OGATE::QAR1(I)
- P(g);N_GUARD,S_CUTR(e)::S(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).