MESON Chess Problem Database
Problem Display
PID: 215702 (1KR5/5N2/4p1p1/1n2p1p1/1N1Bk2n/4P3/Qb2BP2/6rb w - - 0 1)
Pradignat, Emile Leonard
Reclam-Sammlung I, 1881
#2
9 + 10
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qxb1#
- 1...Rg2
- 2.Qb1#
- 1...Rg3
- 2.Qb1#
- 1...Rg4
- 2.Qb1#
- 1...Bf3
- 2.Bd3#
- 1...Ba1
- 2.Qc2#
- 1...Bc1
- 2.Qb1#
- 2.Qc2#
- 1...Ba3
- 2.Qc2#
- 1...Bc3
- 2.Qc2#
- 1...Bxd4
- 2.Qc2#
- 1...Sf3
- 2.Bd3#
- 1...Sf5
- 2.Qa8#
- 1...Sa3
- 2.Sd6#
- 1...Sc3
- 2.Sd6#
- 1...Sxd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...exd4
- 2.Qxe6#
- 1...Rb1
- Tries
- 1.Sxg5+?
- 1...Rxg5
- 2.Qb1#
- 1...Kf5!
- 1...Rxg5
- 1.Bg4?
- threat
- 2.Sxg5#
- 2.Qa8#
- 1...Sxd4
- 2.Sxg5#
- 2.Sd6#
- 1...exd4
- 2.Qxe6#
- 2.Qa8#
- 1...Ra1
- 2.Sxg5#
- 1...Rc1
- 2.Sxg5#
- 1...Ba3
- 2.Sxg5#
- 2.Qc2#
- 1...Sf3
- 2.Qa8#
- 1...Sa3
- 2.Sxg5#
- 2.Sd6#
- 1...Sc3
- 2.Sxg5#
- 2.Sd6#
- 1...Sd6
- 2.Sxg5#
- 2.Sxd6#
- 1...Sa7
- 2.Sxg5#
- 2.Sd6#
- 1...Sc7
- 2.Sxg5#
- 2.Sd6#
- 1...Rxg4!
- threat
- 1.Rc5?
- threat
- 2.Rxe5#
- 1...Bxd4
- 2.Qc2#
- 1...exd4
- 2.Re5#
- 2.Qxe6#
- 2.Qa8#
- 1...Sf3
- 2.Bd3#
- 1...Kf5!
- threat
- 1.Qd5+?
- 1...Kf5
- 2.Qxe5#
- 1...exd5!
- 1...Kf5
- 1.Qxe6?
- threat
- 2.Qxe5#
- 1...Sf3
- 2.Bd3#
- 2.Qxg6#
- 1...Bxd4!
- threat
- 1.f3+?
- 1...Bxf3
- 2.Bd3#
- 1...Sxf3
- 2.Bd3#
- 1...Kf5!
- 1...Bxf3
- 1.Sxg5+?
- Keys
- 1.Rf8!
- 1...Kf5
- 2.Sd6#
- 1...Bxd4
- 2.Qc2#
- 1...Sxd4
- 2.Sd6#
- 1...exd4
- 2.Qxe6#
- 1...Ra1
- 2.Sxg5#
- 1...Rb1
- 2.Sxg5#
- 2.Qxb1#
- 1...Rc1
- 2.Sxg5#
- 1...Rd1
- 2.Sxg5#
- 1...Re1
- 2.Sxg5#
- 1...Rf1
- 2.Sxg5#
- 1...Rg2
- 2.Qb1#
- 1...Rg3
- 2.Qb1#
- 1...Rg4
- 2.Qb1#
- 1...Bg2
- 2.Sxg5#
- 1...Bf3
- 2.Bd3#
- 1...Ba1
- 2.Qc2#
- 1...Bc1
- 2.Qb1#
- 2.Qc2#
- 1...Ba3
- 2.Qc2#
- 1...Bc3
- 2.Qc2#
- 1...Sg2
- 2.Sxg5#
- 1...Sf3
- 2.Bd3#
- 1...Sf5
- 2.Qa8#
- 1...Sa3
- 2.Sd6#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...g4
- 2.Sg5#
- 1...Kf5
- 1.Rf8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::QAB(A),XR(a)
- R(a);N_GUARD::QAB(A)
- B(b);SBLOCK::B(B)
- B(c);OGATE::QAB(A)
- B(c);OGATE,XB(F)::QAB(A)
- S(e);SBLOCK::B(B)
- S(e);SBLOCK::QAB(A)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD,XB(F)::S(G)
- S(f);N_GUARD::S(G),XS(f)
- P(g);OGATEB,XB(F)::QAR2(A),XP(i)
- Tries
- Try
- S(G);CHECK,XP(h)
- Vars
- R(a);XS(G)::QAB(A)
- Refutation
- K(d);S_FLIGHT
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- R(a);::S(G),XP(h)
- S(e);::QAB(A)
- Refutation
- R(a);XB(B)
- Try
- R(I);
- Threat
- R1(I),XP(g)
- Vars
- B(c);OGATE,XB(F)::QAB(A)
- S(e);SBLOCK::B(B)
- Refutation
- K(d);P_SPINP(g),S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(d);P_SPINP(g),S_FLIGHT::QAR1(A),XP(g)
- Refutation
- P(i);XQ(A)
- Try
- Q(A);P_PINP(g),XP(i)
- Threat
- QAR1(A),XP(g)
- Refutation
- B(c);XB(F)
- Try
- P(C);CHECK
- Vars
- B(b);SBLOCK,XP(C)::B(B)
- S(e);SBLOCK,XP(C)::B(B)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- R(I);
- Vars
- K(d);S_FLIGHT::R(I)+S(G),DCHECK
- B(c);OGATE,XB(F)::QAB(A)
- S(f);N_GUARD,XB(F)::S(G)
- P(g);OGATEB,XB(F)::QAR2(A),XP(i)
- R(a);N_GUARD::S(G),XP(h)
- R(a);N_GUARD::QAB(A)
- B(b);S_CUTR(a)::S(G),XP(h)
- B(b);SBLOCK::B(B)
- B(c);OGATE::QAB(A)
- S(e);S_CUTR(a)::S(G),XP(h)
- S(e);SBLOCK::B(B)
- S(e);SBLOCK::QAB(A)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD::S(G),XS(f)
- P(h);S_CUTR(a)::S(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).