MESON Chess Problem Database
Problem Display
PID: 238717 (8/3B4/N1pB1p2/1R3N1K/4kP1p/3Rnn2/2rbP2Q/1r6 w - - 0 1)
Ellerman, Arnoldo
L'Italia Scacchistica, 1949
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Sc5#
- 1...Rb2
- 2.Sc5#
- 1...Rc5
- 2.Sxc5#
- 1...Be1
- 2.Rxe3#
- 1...Bc3
- 2.Sc5#
- 2.Rxe3#
- 1...Bb4
- 2.Rxe3#
- 1...Ba5
- 2.Rxe3#
- 1...Sc4
- 2.Sc5#
- 2.Bxc6#
- 1...Sxf5
- 2.Bxf5#
- 1...Se1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sxh2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Se5
- 2.Rd4#
- 1...Sg5
- 2.Rd4#
- 1...h3
- 2.Sg3#
- 1...Ra2
- Tries
- 1.Ba3?
- threat
- 2.Sd6#
- 1...Sxf5
- 2.Bxf5#
- 1...Sxh2
- 2.Rd4#
- 1...Rc5
- 2.Sxc5#
- 1...Bb4
- 2.Rxe3#
- 1...Sc4
- 2.Sc5#
- 2.Bxc6#
- 1...Rxb5!
- threat
- 1.Bc5?
- threat
- 2.Sd6#
- 1...Rxc5
- 2.Sxc5#
- 1...Sxf5
- 2.Bxc6#
- 1...Sxh2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sc4!
- threat
- 1.Be5?
- threat
- 2.Sd6#
- 1...Bb4
- 2.Rxe3#
- 1...Sc4
- 2.Sc5#
- 1...Sxf5!
- threat
- 1.Bc7?
- threat
- 2.Sd6#
- 1...Sxf5
- 2.Bxf5#
- 1...Sxh2
- 2.Rd4#
- 1...Rc5
- 2.Sxc5#
- 1...Bb4
- 2.Rxe3#
- 1...Sc4
- 2.Sc5#
- 2.Bxc6#
- 1...Rxb5!
- threat
- 1.Be7?
- threat
- 2.Sd6#
- 1...Sxf5
- 2.Bxf5#
- 1...Sxh2
- 2.Rd4#
- 1...Rc5
- 2.Sxc5#
- 1...Bb4
- 2.Rxe3#
- 1...Sc4
- 2.Sc5#
- 2.Bxc6#
- 1...Rxb5!
- threat
- 1.Bb8?
- threat
- 2.Sd6#
- 1...Sxf5
- 2.Bxf5#
- 1...Sxh2
- 2.Rd4#
- 1...Rc5
- 2.Sxc5#
- 1...Bb4
- 2.Rxe3#
- 1...Sc4
- 2.Sc5#
- 2.Bxc6#
- 1...Rxb5!
- threat
- 1.Bf8?
- threat
- 2.Sd6#
- 1...Sxf5
- 2.Bxf5#
- 1...Sxh2
- 2.Rd4#
- 1...Rc5
- 2.Sxc5#
- 1...Bb4
- 2.Rxe3#
- 1...Sc4
- 2.Sc5#
- 2.Bxc6#
- 1...Rxb5!
- threat
- 1.Re5+?
- 1...Sxe5
- 2.Rd4#
- 1...fxe5!
- 1...Sxe5
- 1.Qg3?
- threat
- 2.Qxf3#
- 1...hxg3
- 2.Sxg3#
- 1...Se1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Se5
- 2.Rd4#
- 1...Sg5
- 2.Rd4#
- 1...Rf1!
- threat
- 1.Qf2?
- threat
- 2.Qxf3#
- 1...Se1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Se5
- 2.Rd4#
- 1...Sg5
- 2.Rd4#
- 1...Rf1!
- threat
- 1.Qg2?
- threat
- 2.Rd4#
- 2.Qxf3#
- 1...Sxf5
- 2.Bxf5#
- 2.Qxf3#
- 1...Rf1
- 2.Rd4#
- 1...Rb4
- 2.Qxf3#
- 1...Rc4
- 2.Qxf3#
- 1...Bc3
- 2.Sc5#
- 2.Rxe3#
- 2.Qxf3#
- 1...c5
- 2.Qxf3#
- 1...Sxg2!
- threat
- 1.Qh3?
- threat
- 2.Qxf3#
- 1...Se5
- 2.Rd4#
- 1...Se1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sg5
- 2.Rd4#
- 1...Rf1!
- threat
- 1.Ba3?
- Keys
- 1.Bb4!
- threat
- 2.Sd6#
- 1...Bxb4
- 2.Rxe3#
- 1...Sxf5
- 2.Bxf5#
- 1...Sxh2
- 2.Rd4#
- 1...Rc5
- 2.Sxc5#
- 1...Sc4
- 2.Sc5#
- 2.Bxc6#
- threat
- 1.Bb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- R(b);N_GUARD::S(H)
- R(b);N_GUARD,P_PINS(F)::S(H),XR(b)
- B(c);N_GUARD::R1(C),XS(d)
- S(d);OGATE,XS(F)::B(J),XS(d)
- S(e);N_GUARD::R1(C)
- S(e);N_GUARD,XQ(B)::R1(C)
- S(e);N_GUARD::R1(C),XS(e)
- P(g);N_GUARD::S(F)
- Tries
- Try
- B(I);
- Threat
- S(F)
- Vars
- S(d);OGATE,XS(F)::B(J),XS(d)
- S(e);N_GUARD,XQ(B)::R1(C)
- R(b);N_GUARD,P_PINS(F)::S(H),XR(b)
- B(c);N_GUARD::R1(C),XS(d)
- Refutation
- R(a);P_PINS(F),XR(E)
- Try
- B(I);
- Threat
- S(F)
- Vars
- R(b);P_PINS(F),XB(I)::S(H),XR(b)
- S(d);N_GUARD,SBLOCK,XS(F)::B(J),XP(h)
- S(e);N_GUARD,XQ(B)::R1(C)
- S(e);N_GUARD::R1(C),XS(e)
- Refutation
- S(d);
- Try
- B(I);
- Threat
- S(F)
- Vars
- B(c);N_GUARD::R1(C),XS(d)
- S(d);S_CUTR(b)::S(H)
- Refutation
- S(d);XS(F)
- Try
- B(I);
- Threat
- S(F)
- Vars
- S(d);OGATE,XS(F)::B(J),XS(d)
- S(e);N_GUARD,XQ(B)::R1(C)
- R(b);N_GUARD,P_PINS(F)::S(H),XR(b)
- B(c);N_GUARD::R1(C),XS(d)
- Refutation
- R(a);P_PINS(F),XR(E)
- Try
- B(I);
- Threat
- S(F)
- Vars
- S(d);OGATE,XS(F)::B(J),XS(d)
- S(e);N_GUARD,XQ(B)::R1(C)
- R(b);N_GUARD,P_PINS(F)::S(H),XR(b)
- B(c);N_GUARD::R1(C),XS(d)
- Refutation
- R(a);P_PINS(F),XR(E)
- Try
- B(I);
- Threat
- S(F)
- Vars
- S(d);OGATE,XS(F)::B(J),XS(d)
- S(e);N_GUARD,XQ(B)::R1(C)
- R(b);N_GUARD,P_PINS(F)::S(H),XR(b)
- B(c);N_GUARD::R1(C),XS(d)
- Refutation
- R(a);P_PINS(F),XR(E)
- Try
- B(I);
- Threat
- S(F)
- Vars
- S(d);OGATE,XS(F)::B(J),XS(d)
- S(e);N_GUARD,XQ(B)::R1(C)
- R(b);N_GUARD,P_PINS(F)::S(H),XR(b)
- B(c);N_GUARD::R1(C),XS(d)
- Refutation
- R(a);P_PINS(F),XR(E)
- Try
- R(E);CHECK
- Vars
- S(e);XR(E)::R1(C)
- Refutation
- P(i);XR(E)
- Try
- Q(B);
- Threat
- QAB1(B),XS(e)
- Vars
- P(g);XQ(B)::S(F),XP(g)
- S(e);N_GUARD::R1(C)
- S(e);N_GUARD::R1(C),XS(e)
- Refutation
- R(a);
- Try
- Q(B);
- Threat
- QAB1(B),XS(e)
- Vars
- S(e);N_GUARD::R1(C)
- S(e);N_GUARD::R1(C),XS(e)
- Refutation
- R(a);
- Try
- Q(B);P_PINS(e)
- Threat
- DUALS(2)
- Vars
- R(a);::R1(C)
- R(a);::QAB1(B),XS(e)
- R(b);::QAB1(B),XS(e)
- P(h);::QAB1(B),XS(e)
- Refutation
- S(d);N_SPINS(e),XQ(B)
- Try
- Q(B);
- Threat
- QAB1(B),XS(e)
- Vars
- S(e);N_GUARD::R1(C)
- S(e);N_GUARD::R1(C),XS(e)
- Refutation
- R(a);
- Try
- Actual
- B(I);
- Threat
- S(F)
- Vars
- B(c);N_GUARD,XB(I)::R1(C),XS(d)
- S(d);OGATE,XS(F)::B(J),XS(d)
- S(e);N_GUARD,XQ(B)::R1(C)
- R(b);N_GUARD,P_PINS(F)::S(H),XR(b)
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).