MESON Chess Problem Database
Problem Display
PID: 194022 (1b6/3B1p1n/bQ4pK/p7/pr2NkP1/P3Rr1P/4PP2/2N2R2 w - - 0 1)
Billi, O
L'Italia Scacchistica, 1917
#2
12 + 10
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.Sd3#
- 1...Rb5
- 2.Sd3#
- 1...Bd3
- 2.Sxd3#
- 1...Bb5
- 2.Qxb8#
- 1...Bb7
- 2.Sd3#
- 1...Bc8
- 2.Sd3#
- 1...Bd6
- 2.Qxd6#
- 1...Ba7
- 2.Qc7#
- 2.Qd6#
- 1...Bc7
- 2.Qxc7#
- 1...Sg5
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sf8
- 2.Qf6#
- 1...Rc4
- Tries
- 1.Sc3?
- threat
- 2.Sd5#
- 1...Rxe3
- 2.Qxe3#
- 1...Re4
- 2.Rxe4#
- 1...Rd4
- 2.Qxd4#
- 1...Rb5
- 2.Sd3#
- 2.Re4#
- 2.Qd4#
- 1...Bc4
- 2.Re4#
- 2.Qd4#
- 1...Bb7
- 2.Sd3#
- 1...Sf6
- 2.Qxf6#
- 1...Rxh3+!
- threat
- 1.Sf6?
- threat
- 2.Sd5#
- 1...Rxe3
- 2.Qxe3#
- 1...Sxf6
- 2.Qxf6#
- 1...Re4
- 2.Rxe4#
- 1...Rd4
- 2.Qxd4#
- 1...Rb5
- 2.Sd3#
- 2.Re4#
- 2.Qd4#
- 1...Bc4
- 2.Re4#
- 2.Qd4#
- 1...Bb7
- 2.Sd3#
- 1...Rxh3+!
- threat
- 1.Sc3?
- Keys
- 1.Sg5!
- 1...Rxh3+
- 2.Sxh3#
- 1...Rxf2
- 2.Rxf2#
- 1...Rxe3
- 2.Qxe3#
- 1...Rxb6
- 2.Re4#
- 1...Bxe2
- 2.Sxe2#
- 1...Sxg5
- 2.Qf6#
- 1...Re4
- 2.Rxe4#
- 1...Rg3
- 2.fxg3#
- 1...Rb1
- 2.Re4#
- 2.Qd4#
- 1...Rb2
- 2.Re4#
- 2.Qd4#
- 1...Rb3
- 2.Re4#
- 2.Qd4#
- 1...Rc4
- 2.Sd3#
- 1...Rd4
- 2.Qxd4#
- 1...Rb5
- 2.Sd3#
- 2.Re4#
- 2.Qd4#
- 1...Bd3
- 2.Sxd3#
- 1...Bc4
- 2.Re4#
- 2.Qd4#
- 1...Bb5
- 2.Qxb8#
- 1...Bb7
- 2.Sd3#
- 1...Bc8
- 2.Sd3#
- 1...Be5
- 2.Rxf3#
- 1...Bd6
- 2.Qxd6#
- 1...Ba7
- 2.Qc7#
- 2.Qd6#
- 1...Bc7
- 2.Qxc7#
- 1...Sf6
- 2.Qxf6#
- 1...Sf8
- 2.Qf6#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...Rxh3+
- 1.Sg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 1
- Sets
- R(c);S_CUTB(f)::S(A)
- B(f);N_GUARD::S(A),XB(f)
- B(f);S_CUTR(c)::QAB(J),XB(j)
- B(f);N_GUARD::S(A)
- B(j);N_GUARD::QAB(J),XB(j)
- S(i);N_GUARD::QAR2(J)
- S(i);N_GUARD::QAR2(J),XS(i)
- Tries
- Try
- S(H);
- Threat
- S(H)
- Vars
- R(a);OGATE,XR(F)::QAB1(J),XR(a)
- R(c);N_GUARD::R1(F),XR(c)
- R(c);N_GUARD::QAR2(J),XR(c)
- B(f);N_GUARD::S(A)
- S(i);N_GUARD::QAR2(J),XS(i)
- Refutation
- R(a);CHECK,XP(G)
- Try
- S(H);
- Threat
- S(H)
- Vars
- R(a);OGATE,XR(F)::QAB1(J),XR(a)
- S(i);OGATE,XS(H)::QAR2(J),XS(i)
- R(c);N_GUARD::R1(F),XR(c)
- R(c);N_GUARD::QAR2(J),XR(c)
- B(f);N_GUARD::S(A)
- Refutation
- R(a);CHECK,XP(G)
- Try
- Actual
- S(H);
- Vars
- R(a);CHECK,XP(G)::S(H),XR(a)
- R(a);OGATE,P_SPINR(a),XP(D)::R(B),XR(a)
- R(a);OGATE,XR(F)::QAB1(J),XR(a)
- R(c);N_GUARD,XQ(J)::R1(F)
- B(f);XP(C)::S(A),XB(f)
- S(i);N_GUARD,XS(H)::QAR2(J)
- R(c);N_GUARD::R1(F),XR(c)
- R(a);OGATE::R(B)+P(D)DCHECK,XR(a)
- R(c);S_CUTB(f)::S(A)
- R(c);N_GUARD::QAR2(J),XR(c)
- B(f);N_GUARD::S(A),XB(f)
- B(f);S_CUTR(c)::QAB(J),XB(j)
- B(f);N_GUARD::S(A)
- B(j);SBLOCK::R1(F),XR(a)
- B(j);N_GUARD::QAB(J),XB(j)
- S(i);N_GUARD::QAR2(J),XS(i)
- S(i);N_GUARD::QAR2(J)
- P(h);N_GUARD::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).