MESON Chess Problem Database
Problem Display
PID: 64024 (3b2br/2pQNpB1/p1B4N/8/r2R3K/n3k1P1/4pppP/2Rn1q2 w - - 0 1)
Belli, Nicolo
4th HM., Good Companions (December), 1920
#2
10 + 14
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Rxd4+
- 2.Qxd4#
- 1...Ra5
- 2.Rd3#
- 1...Rxh6+
- 2.Bxh6#
- 1...Bxe7+
- 2.Qxe7#
- 1...Bh7
- 2.Sg4#
- 1...Sc3
- 2.Rxc3#
- 1...Sc4
- 2.Rd3#
- 1...f6
- 2.Sf5#
- 1...Rxd4+
- Tries
- 1.Re4+?
- 1...Kf3
- 2.Qg4#
- 2.Qf5#
- 1...Rxe4+!
- 1...Kf3
- 1.Qg4?
- threat
- 2.Qf3#
- 2.Qe4#
- 2.Qf4#
- 2.Qg5#
- 1...Rxh6+
- 2.Bxh6#
- 1...Rxd4
- 2.Qxd4#
- 1...e1Q
- 2.Qf3#
- 2.Qe4#
- 1...e1S
- 2.Qe4#
- 1...e1B
- 2.Qf3#
- 2.Qe4#
- 1...e1R
- 2.Qf3#
- 2.Qe4#
- 1...g1S
- 2.Qe4#
- 2.Qf4#
- 2.Qg5#
- 1...Ra5
- 2.Qf3#
- 2.Qe4#
- 2.Qf4#
- 1...Bh7
- 2.Qf3#
- 2.Qf4#
- 2.Qg5#
- 1...Sc3
- 2.Rxc3#
- 2.Qf3#
- 2.Qf4#
- 2.Qg5#
- 1...f5
- 2.Qf3#
- 2.Qf4#
- 1...f6
- 2.Sf5#
- 2.Qe4#
- 2.Qf4#
- 1...Bxe7+!
- threat
- 1.Qd5?
- threat
- 2.Qf3#
- 2.Qe4#
- 2.Qe5#
- 2.Qg5#
- 1...Rxd4+
- 2.Qxd4#
- 1...Rxh6+
- 2.Bxh6#
- 1...e1Q
- 2.Qf3#
- 2.Qe4#
- 2.Qe5#
- 1...e1S
- 2.Qe4#
- 2.Qe5#
- 1...e1B
- 2.Qf3#
- 2.Qe4#
- 2.Qe5#
- 1...e1R
- 2.Qf3#
- 2.Qe4#
- 2.Qe5#
- 1...g1S
- 2.Qe4#
- 2.Qe5#
- 2.Qg5#
- 1...Ra5
- 2.Rd3#
- 2.Qf3#
- 2.Qe4#
- 1...Bh7
- 2.Sg4#
- 2.Qf3#
- 2.Qg5#
- 1...Sc3
- 2.Rxc3#
- 2.Qf3#
- 2.Qg5#
- 1...Sc4
- 2.Rd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qg5#
- 1...f5
- 2.Qf3#
- 2.Qe5#
- 1...f6
- 2.Sf5#
- 2.Qe4#
- 1...Bxe7+!
- threat
- 1.Qd6?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Rxd4+
- 2.Qxd4#
- 1...Rxh6+
- 2.Bxh6#
- 2.Qxh6#
- 1...Bxe7+
- 2.Qxe7#
- 1...e1Q
- 2.Qe5#
- 1...e1S
- 2.Qe5#
- 1...e1B
- 2.Qe5#
- 1...e1R
- 2.Qe5#
- 1...Ra5
- 2.Rd3#
- 2.Qf4#
- 1...Bh7
- 2.Sg4#
- 2.Qf4#
- 1...Sc3
- 2.Rxc3#
- 2.Qf4#
- 1...Sc4
- 2.Rd3#
- 2.Qf4#
- 1...f6
- 2.Sf5#
- 2.Qf4#
- 1...cxd6!
- threat
- 1.Re4+?
- Keys
- 1.Rc5!
- threat
- 2.Re5#
- 1...Rxd4+
- 2.Qxd4#
- 1...Rxh6+
- 2.Bxh6#
- 1...Bxe7+
- 2.Qxe7#
- 1...Ra5
- 2.Rd3#
- 1...Bh7
- 2.Sg4#
- 1...Sc3
- 2.Rxc3#
- 1...Sc4
- 2.Rd3#
- 1...f6
- 2.Sf5#
- threat
- 1.Rc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(h);CHECK,OGATE,XR(D)::QAB1(H),XR(h)
- R(h);N_PINR(D)::R1(D)
- R(n);CHECK,OGATE,P_PINS(I),XS(G)::B(J),XR(n)
- B(l);CHECK,OGATE,XS(I)::QAR(H),XB(l)
- B(m);N_PINS(G),P_PINS(I)::S(G)
- S(a);N_GUARD::R(A),XS(a)
- S(f);N_PINR(D)::R1(D)
- P(k);::S(I)
- Tries
- Try
- R(D);CHECK
- Refutation
- R(h);CHECK,XR(D)
- Try
- Q(H);N_SPINR(D)
- Threat
- DUALS(4)
- Vars
- R(n);CHECK,OGATE,P_PINS(I),XS(G)::B(J),XR(n)
- R(h);OGATE,P_PINQ(H),XR(D)::QAB1(H),XR(h)
- P(c);::QAR1(H)
- Refutation
- B(l);CHECK,XS(I)
- Try
- Q(H);
- Threat
- DUALS(4)
- Vars
- R(h);CHECK,OGATE,XR(D)::QAB1(H),XR(h)
- R(n);CHECK,OGATE,P_PINS(I),XS(G)::B(J),XR(n)
- Refutation
- B(l);CHECK,XS(I)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,OGATE,XR(D)::QAB1(H),XR(h)
- B(l);CHECK,OGATE,XS(I)::QAR(H),XB(l)
- P(c);::QAR2(H)
- Refutation
- P(j);XQ(H)
- Try
- Actual
- R(A);
- Threat
- R(A)
- Vars
- R(h);CHECK,OGATE,XR(D)::QAB1(H),XR(h)
- R(n);CHECK,OGATE,P_PINS(I),XS(G)::B(J),XR(n)
- B(l);CHECK,OGATE,XS(I)::QAR(H),XB(l)
- R(h);N_PINR(D)::R1(D)
- B(m);N_PINS(G),P_PINS(I)::S(G)
- S(a);N_GUARD::R(A),XS(a)
- S(f);N_PINR(D)::R1(D)
- P(k);::S(I)
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).