MESON Chess Problem Database
Problem Display
PID: 83519 (8/bp2pp2/1Bp5/2r3QK/np1k4/2N1pP2/4B3/2R5 w - - 0 1)
Ellerman, Arnoldo
Good Companions, 1919
#2
7 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Qxc5#
- 1...Sxc3
- 2.Qxc5#
- 1...bxc3
- 2.Rd1#
- 1...e5
- 2.Qd8#
- 1...f5
- 2.Qf4#
- 1...Sb2
- Tries
- 1.Kh4?
- threat
- 2.Qf4#
- 1...Sxc3
- 2.Qxc5#
- 1...bxc3
- 2.Rd1#
- 1...e5
- 2.Qd8#
- 1...Bb8!
- threat
- 1.Kh6?
- threat
- 2.Qf4#
- 1...Sxc3
- 2.Qxc5#
- 1...bxc3
- 2.Rd1#
- 1...e5
- 2.Qd8#
- 1...Bb8!
- threat
- 1.Sb1?
- threat
- 2.Rd1#
- 2.Rc4#
- 1...Bxb6
- 2.Rd1#
- 1...Sxb6
- 2.Rd1#
- 2.Qxc5#
- 1...e5
- 2.Rd1#
- 2.Qd8#
- 1...Sb2
- 2.Qxc5#
- 1...Sc3
- 2.Qxc5#
- 1...f5!
- threat
- 1.Sa2?
- threat
- 2.Rd1#
- 2.Rc4#
- 1...Bxb6
- 2.Rd1#
- 1...Sxb6
- 2.Rd1#
- 2.Qxc5#
- 1...e5
- 2.Rd1#
- 2.Qd8#
- 1...Sb2
- 2.Qxc5#
- 1...Sc3
- 2.Qxc5#
- 1...f5!
- threat
- 1.Sxa4?
- threat
- 2.Rd1#
- 2.Rc4#
- 2.Qxc5#
- 1...Bxb6
- 2.Rd1#
- 1...e5
- 2.Rd1#
- 2.Qd8#
- 1...f5!
- threat
- 1.Se4?
- threat
- 2.Rd1#
- 2.Rc4#
- 1...Bxb6
- 2.Rd1#
- 1...Sxb6
- 2.Rd1#
- 2.Qxc5#
- 1...e5
- 2.Rd1#
- 2.Qd8#
- 1...Sb2
- 2.Qxc5#
- 1...Sc3
- 2.Qxc5#
- 1...f5!
- threat
- 1.Ba6?
- threat
- 2.Se2#
- 1...Sxc3
- 2.Qxc5#
- 1...bxc3
- 2.Rd1#
- 1...f5
- 2.Qf4#
- 1...e2
- 2.Sxe2#
- 1...e5
- 2.Qd8#
- 1...bxa6!
- threat
- 1.Bxc5+?
- 1...Bxc5
- 2.Qf4#
- 1...Sxc5!
- 1...Bxc5
- 1.Kh4?
- Keys
- 1.Bb5!
- threat
- 2.Se2#
- 1...Sxc3
- 2.Qxc5#
- 1...bxc3
- 2.Rd1#
- 1...cxb5
- 2.Qd5#
- 1...f5
- 2.Qf4#
- 1...e2
- 2.Sxe2#
- 1...e5
- 2.Qd8#
- threat
- 1.Bb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(b);N_GUARD::QAB1(E),XR(e)
- S(b);N_GUARD,XS(C)::QAB1(E),XR(e)
- P(c);SBLOCK,XS(C)::R(A)
- P(i);N_PINQ(E),SBLOCK::QAR(E)
- P(j);N_PINQ(E)::QAR2(E)
- Tries
- Try
- K(F);N_SPINQ(E),P-FLIGHT
- Threat
- QAR2(E)
- Vars
- S(b);N_GUARD,XS(C)::QAB1(E),XR(e)
- P(c);SBLOCK,XS(C)::R(A)
- P(i);OGATE,SBLOCK::QAR(E)
- Refutation
- B(g);
- Try
- K(F);N_SPINQ(E),P-FLIGHT
- Threat
- QAR2(E)
- Vars
- S(b);N_GUARD,XS(C)::QAB1(E),XR(e)
- P(c);SBLOCK,XS(C)::R(A)
- P(i);OGATE,SBLOCK::QAR(E)
- Refutation
- B(g);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- B(g);N_SPINR(e),XB(G)::R(A)
- S(b);N_GUARD::QAB1(E),XR(e)
- Refutation
- P(j);N_PINQ(E)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- B(g);N_SPINR(e),XB(G)::R(A)
- S(b);N_GUARD::QAB1(E),XR(e)
- Refutation
- P(j);N_PINQ(E)
- Try
- S(C);XS(b)
- Threat
- DUALS(3)
- Vars
- B(g);N_SPINR(e),XB(G)::R(A)
- Refutation
- P(j);N_PINQ(E)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- B(g);N_SPINR(e),XB(G)::R(A)
- S(b);N_GUARD::QAB1(E),XR(e)
- Refutation
- P(j);N_PINQ(E)
- Try
- B(B);
- Threat
- S(C)
- Vars
- S(b);N_GUARD,XS(C)::QAB1(E),XR(e)
- P(c);SBLOCK,XS(C)::R(A)
- P(j);N_PINQ(E)::QAR2(E)
- P(a);::S(C),XP(a)
- P(i);N_PINQ(E),SBLOCK::QAR(E)
- Refutation
- P(h);XB(B)
- Try
- B(G);CHECK,N_SPINQ(E),XR(e)
- Vars
- B(g);SBLOCK,XB(G)::QAR2(E)
- Refutation
- S(b);XB(G)
- Try
- Actual
- B(B);
- Threat
- S(C)
- Vars
- S(b);N_GUARD,XS(C)::QAB1(E),XR(e)
- P(c);SBLOCK,XS(C)::R(A)
- P(f);N_GUARD,XB(B)::QAR1(E)
- P(j);N_PINQ(E)::QAR2(E)
- P(a);::S(C),XP(a)
- P(i);N_PINQ(E),SBLOCK::QAR(E)
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).