MESON Chess Problem Database
Problem Display
PID: 208831 (1B3R2/1pRPp1p1/1P1rp3/2Kbkp2/1p3nP1/1Pp5/3N1NQ1/8 w - - 0 1)
Forsting, John J
St. Louis Globe Democrat, 1876
#2
11 + 11
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxb6
- 2.Rc6#
- 1...Rc6+
- 2.Rxc6#
- 1...Rxd7
- 2.Rxd7#
- 1...Bxg2
- 2.Sc4#
- 1...Bxb3
- 2.Sf3#
- 1...Bf3
- 2.Sxf3#
- 2.Sc4#
- 1...Bc4
- 2.Sf3#
- 2.Sxc4#
- 1...Be4
- 2.Sc4#
- 1...Bc6
- 2.Sc4#
- 1...Se2
- 2.Sd3#
- 1...Sxg2
- 2.Sd3#
- 1...Sd3+
- 2.Sxd3#
- 1...Sh3
- 2.Sd3#
- 1...Sh5
- 2.Sd3#
- 1...Sg6
- 2.Sd3#
- 1...fxg4
- 2.Sxg4#
- 1...Rxb6
- Tries
- 1.Qe4+?
- 1...Bxe4
- 2.Sc4#
- 1...fxe4!
- 1...Bxe4
- 1.Qh2?
- threat
- 2.Sd3#
- 1...Rc6+
- 2.Rxc6#
- 1...Bxb3
- 2.Sf3#
- 1...Bh1
- 2.Sc4#
- 1...Bg2
- 2.Sc4#
- 1...Bf3
- 2.Sxf3#
- 2.Sc4#
- 1...Bc4
- 2.Sf3#
- 2.Sxc4#
- 1...Be4
- 2.Sc4#
- 1...Bc6
- 2.Sc4#
- 1...cxd2!
- threat
- 1.Qg3?
- threat
- 2.Sd3#
- 1...Rc6+
- 2.Rxc6#
- 1...Bxb3
- 2.Sf3#
- 2.Qe3#
- 1...Bh1
- 2.Sc4#
- 1...Bg2
- 2.Sc4#
- 1...Bf3
- 2.Sxf3#
- 2.Sc4#
- 1...Bc4
- 2.Sf3#
- 2.Sxc4#
- 2.Qe3#
- 1...Be4
- 2.Sc4#
- 1...Bc6
- 2.Sc4#
- 1...cxd2!
- threat
- 1.gxf5?
- threat
- 2.Sg4#
- 2.Qxg7#
- 1...Rc6+
- 2.Rxc6#
- 1...Sd3+
- 2.Sxd3#
- 1...Bxg2
- 2.Sc4#
- 2.Sg4#
- 1...Sxg2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sh3
- 2.Sd3#
- 1...Sh5
- 2.Sd3#
- 1...Sg6
- 2.Sd3#
- 1...Bf3
- 2.Sxf3#
- 2.Sc4#
- 2.Qxg7#
- 1...g5
- 2.Sg4#
- 1...g6
- 2.Sg4#
- 1...exf5!
- threat
- 1.Qe4+?
- Keys
- 1.Qh1!
- 1...Rc6+
- 2.Rxc6#
- 1...Sd3+
- 2.Sxd3#
- 1...Rxb6
- 2.Rc6#
- 1...Rxd7
- 2.Rxd7#
- 1...Bxh1
- 2.Sc4#
- 1...Bxb3
- 2.Sf3#
- 1...cxd2
- 2.Qa1#
- 1...fxg4
- 2.Sxg4#
- 1...Se2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sh3
- 2.Sd3#
- 1...Sh5
- 2.Sd3#
- 1...Sg6
- 2.Sd3#
- 1...c2
- 2.Qa1#
- 1...Bg2
- 2.Sc4#
- 1...Bf3
- 2.Sxf3#
- 2.Sc4#
- 1...Bc4
- 2.Sf3#
- 2.Sxc4#
- 1...Be4
- 2.Sc4#
- 1...Bc6
- 2.Sc4#
- 1...g5
- 2.Qh8#
- 1...g6
- 2.Qh8#
- 1...Rc6+
- 1.Qh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(g);OGATEB,XP(G)::B(J)+R(H)
- R(g);CHECK,OGATEB::B(J)+R(H),XR(g)
- R(g);OGATE,XP(I)::B(J)+R(H),XR(g)
- B(d);N_GUARD,XQ(C)::S(A)
- B(d);N_GUARD,XP(D)::S(A)
- B(d);N_GUARD::S(A)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD,XQ(C)::S(B)
- S(c);CHECK,N_GUARD::S(B),XS(c)
- P(f);XP(E)::S(B),XP(f)
- Tries
- Try
- Q(C);CHECK
- Vars
- B(d);XQ(C)::S(A)
- Refutation
- P(f);XQ(C)
- Try
- Q(C);P_PINS(c)
- Threat
- S(B)
- Vars
- R(g);CHECK,OGATEB::B(J)+R(H),XR(g)
- B(d);N_GUARD,XP(D)::S(A)
- B(d);N_GUARD::S(A)
- Refutation
- P(a);XS(A)
- Try
- Q(C);P_PINS(c)
- Threat
- S(B)
- Vars
- R(g);CHECK,OGATEB::B(J)+R(H),XR(g)
- B(d);N_GUARD::S(A)
- Refutation
- P(a);XS(A)
- Try
- P(E);XP(f)
- Threat
- DUALS(2)
- Vars
- R(g);CHECK,OGATEB::B(J)+R(H),XR(g)
- S(c);CHECK,N_GUARD::S(B),XS(c)
- S(c);N_GUARD,XQ(C)::S(B)
- S(c);N_GUARD::S(B)
- P(k);::S(B)
- Refutation
- P(h);XP(E)
- Try
- Actual
- Q(C);
- Vars
- R(g);CHECK,OGATEB::B(J)+R(H),XR(g)
- S(c);CHECK,N_GUARD::S(B),XS(c)
- R(g);OGATEB,XP(G)::B(J)+R(H)
- R(g);OGATE,XP(I)::B(J)+R(H),XR(g)
- B(d);N_GUARD,XQ(C)::S(A)
- B(d);N_GUARD,XP(D)::S(A)
- P(a);OGATEB,XS(A)::QAB(C)
- P(f);XP(E)::S(B),XP(f)
- S(c);N_GUARD::S(B)
- P(a);OGATEB::QAB(C)
- B(d);N_GUARD::S(A)
- P(k);OGATEB::QAB(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).