MESON Chess Problem Database
Problem Display
PID: 259611 (5r1n/4N1b1/7p/R3p1PP/K3k1r1/5NnQ/2P5/2B4B w - - 0 1)
Somma, Francesco
L'Italia Scacchistica, 1929
#2
10 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rxf3
- 2.Qxg4#
- 1...Rf6
- 2.Rxe5#
- 1...Ra8
- 2.Qxg4#
- 1...Rb8
- 2.Qxg4#
- 1...Rc8
- 2.Qxg4#
- 1...Rd8
- 2.Qxg4#
- 1...Re8
- 2.Qxg4#
- 1...Rg8
- 2.Qxg4#
- 1...Bf6
- 2.Qxg4#
- 1...Sf5
- 2.Qxg4#
- 1...Sf7
- 2.Qxg4#
- 1...Rxf3
- Tries
- 1.Se1+?
- 1...Rf3
- 2.Qxg4#
- 1...Sxh1
- 2.Qd3#
- 2.Qe3#
- 1...Kd4!
- 1...Rf3
- 1.Sg1+?
- 1...Rf3
- 2.Qxg4#
- 1...Sxh1
- 2.Qd3#
- 2.Qe3#
- 1...Kd4!
- 1...Rf3
- 1.Sh2+?
- 1...Rf3
- 2.Qxg4#
- 1...Sxh1
- 2.Qd3#
- 2.Qe3#
- 1...Kd4!
- 1...Rf3
- 1.Sd4+?
- 1...Rf3
- 2.Qxg4#
- 1...Sxh1
- 2.Qd3#
- 2.Qe3#
- 1...Kxd4!
- 1...Rf3
- 1.Sh4+?
- 1...Rf3
- 2.Qxg4#
- 1...Sxh1
- 2.Qd3#
- 2.Qe3#
- 1...Kd4!
- 1...Rf3
- 1.Sxe5+?
- 1...Rf3
- 2.Qxg4#
- 1...Sxh1
- 2.Qd3#
- 2.Qe3#
- 1...Kd4!
- 1...Rf3
- 1.Sf5?
- threat
- 2.Sd6#
- 2.Qxg4#
- 1...Kxf5+
- 2.Sd4#
- 1...Rxg5
- 2.Sxg5#
- 2.Sd6#
- 1...Sxf5
- 2.Qxg4#
- 1...Sxh5
- 2.Sd6#
- 1...Se2
- 2.Sd6#
- 1...Rf4
- 2.Sd2#
- 2.Sxg3#
- 2.Sd6#
- 1...Rh4
- 2.Sxg3#
- 2.Sd6#
- 1...Rf6
- 2.Rxe5#
- 2.Qxg4#
- 1...Rd8
- 2.Qxg4#
- 1...Sg6
- 2.Sd6#
- 1...Sf7
- 2.Qxg4#
- 1...Rxf5!
- threat
- 1.Qxg3?
- threat
- 2.Qe1#
- 1...Rxf3
- 2.Qxg4#
- 1...Rxg3!
- threat
- 1.Se1+?
- Keys
- 1.Sc8!
- threat
- 2.Sd6#
- 1...Kf5+
- 2.Sd4#
- 1...Rxf3
- 2.Qxg4#
- 1...Rxc8
- 2.Qxg4#
- 1...Rf6
- 2.Rxe5#
- 1...Rd8
- 2.Qxg4#
- 1...Sf5
- 2.Qxg4#
- 1...Sf7
- 2.Qxg4#
- threat
- 1.Sc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(g);N_GUARD,P_SPINR(g),XS(D)::QAR2(E),XR(c)
- R(g);S_CUTB(f)::R1(G),XP(d)
- R(g);N_GUARD,P_PINR(G)::QAR2(E),XR(c)
- R(g);N_GUARD::QAR2(E),XR(c)
- B(f);S_CUTR(g)::QAR2(E),XR(c)
- S(a);S_CUTR(g)::QAR2(E),XR(c)
- S(h);S_CUTR(g)::QAR2(E),XR(c)
- Tries
- Try
- S(D);CHECK
- Vars
- R(g);P_SPINR(g)::QAR2(E),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- S(D);CHECK
- Vars
- R(g);P_SPINR(g)::QAR2(E),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- S(D);CHECK
- Vars
- R(g);P_SPINR(g)::QAR2(E),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- S(D);CHECK
- Vars
- R(g);P_SPINR(g)::QAR2(E),XR(c)
- Refutation
- K(b);P-FLIGHT,XS(D)
- Try
- S(D);CHECK
- Vars
- R(g);P_SPINR(g)::QAR2(E),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- S(D);CHECK,XP(d)
- Vars
- R(g);P_SPINR(g)::QAR2(E),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- K(b);CHECK,P_SPINP(d),P_SPINR(c),S_CUTS(a),S_FLIGHT,XS(J)::S(D)
- S(a);XS(J)::QAR2(E),XR(c)
- S(a);XP(I)::S(J)
- S(a);::S(J)
- R(g);::QAR2(E),XR(c)
- S(h);::S(J)
- S(h);::QAR2(E),XR(c)
- Refutation
- R(g);XS(J)
- Try
- Q(E);XS(a)
- Threat
- QAR(E)
- Vars
- R(g);N_GUARD,P_SPINR(g),XS(D)::QAR2(E),XR(c)
- Refutation
- R(c);XQ(E)
- Try
- Actual
- S(J);
- Threat
- S(J)
- Vars
- K(b);CHECK,N_GUARD,P_SPINP(d),P_SPINR(c),S_CUTR(g),S_CUTS(a),S_FLIGHT::S(D)
- R(g);N_GUARD,P_SPINR(g),XS(D)::QAR2(E),XR(c)
- R(g);N_GUARD,XS(J)::QAR2(E),XR(c)
- R(g);S_CUTB(f)::R1(G),XP(d)
- R(g);N_GUARD::QAR2(E),XR(c)
- S(a);S_CUTR(g)::QAR2(E),XR(c)
- S(h);S_CUTR(g)::QAR2(E),XR(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).