MESON Chess Problem Database
Problem Display
PID: 239821 (5B2/b5p1/r3P1pq/n1R3pb/2N2k2/3P2pB/3PQ1P1/3K2N1 w - - 0 1)
Ellerman, Arnoldo
Themes-64, 1968
#2
11 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Bxd6#
- 1...Bxe2+
- 2.Sxe2#
- 1...Bf3
- 2.Qxf3#
- 1...Bg4
- 2.Qxg4#
- 1...Bb6
- 2.Bd6#
- 1...g4
- 2.Qf1#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 1...Rd6
- Tries
- 1.Ke1?
- threat
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 1...Bxe2
- 2.Sxe2#
- 1...Bxc5
- 2.Qe4#
- 2.Qe5#
- 1...Sxc4
- 2.Qe4#
- 1...Bf3
- 2.Qxf3#
- 2.Qe3#
- 2.Qe5#
- 1...Bb8
- 2.Qe3#
- 2.Qe4#
- 1...Sc6
- 2.Qe3#
- 2.Qe4#
- 1...Rxe6!
- threat
- 1.Kc2?
- threat
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 1...Bxe2
- 2.Sxe2#
- 1...Bxc5
- 2.Qe4#
- 2.Qe5#
- 1...Sxc4
- 2.Qe4#
- 1...Bf3
- 2.Qxf3#
- 2.Qe3#
- 2.Qe5#
- 1...Bb8
- 2.Qe3#
- 2.Qe4#
- 1...Sc6
- 2.Qe3#
- 2.Qe4#
- 1...Rxe6!
- threat
- 1.Sf3?
- threat
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 1...Bxf3
- 2.Qxf3#
- 1...Bxc5
- 2.Qe4#
- 2.Qe5#
- 1...Sxc4
- 2.Qe4#
- 1...Bb8
- 2.Qe3#
- 2.Qe4#
- 1...Sc6
- 2.Qe3#
- 2.Qe4#
- 1...Rxe6!
- threat
- 1.Sb6?
- threat
- 2.Sd5#
- 2.Bd6#
- 1...Bxe2+
- 2.Sxe2#
- 1...Bxb6
- 2.Bd6#
- 1...Bf3
- 2.Bd6#
- 2.Qxf3#
- 1...Bg4
- 2.Bd6#
- 2.Qxg4#
- 1...Bb8
- 2.Sd5#
- 1...Sc4
- 2.Sd5#
- 2.Rxc4#
- 1...Sc6
- 2.Sd5#
- 1...Sb7
- 2.Sd5#
- 2.Rc4#
- 1...g4
- 2.Bd6#
- 2.Qf1#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 1...Rxb6!
- threat
- 1.Bg4?
- threat
- 2.Sh3#
- 2.Qf3#
- 2.Qe4#
- 1...Rxe6
- 2.Sh3#
- 2.Qf3#
- 1...Bxg4!
- threat
- 1.Bf5?
- threat
- 2.Sh3#
- 1...Bxe2+
- 2.Sxe2#
- 1...g4
- 2.Qe3#
- 1...Bf3
- 2.Qxf3#
- 1...Bg4
- 2.Qxg4#
- 1...Bxc5!
- threat
- 1.Re5?
- threat
- 2.Re4#
- 1...Bxe2+
- 2.Sxe2#
- 1...Bf3
- 2.Qxf3#
- 1...Bg4
- 2.Qxg4#
- 1...g4
- 2.Qe4#
- 1...Rxe6!
- threat
- 1.Qxh5?
- threat
- 2.Se2#
- 2.Qf3#
- 2.Qg4#
- 1...Rxe6
- 2.Qf3#
- 2.Qg4#
- 1...gxh5
- 2.Se2#
- 2.Rf5#
- 1...g4
- 2.Se2#
- 2.Qxg4#
- 2.Qe5#
- 1...Qxh5+!
- threat
- 1.Ke1?
- Keys
- 1.Se3!
- threat
- 2.Sd5#
- 1...Bxe2+
- 2.Sxe2#
- 1...Rd6
- 2.Bxd6#
- 1...Bf3
- 2.Qxf3#
- 1...Bg4
- 2.Qxg4#
- 1...g4
- 2.Qf1#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(f);N_GUARD::B(K),XR(f)
- B(e);CHECK,XQ(D)::S(B),XB(e)
- B(e);N_GUARD::QAR1(D),XB(e)
- B(i);S_CUTR(f)::B(K)
- Tries
- Try
- K(A);N_SPINQ(D),P-FLIGHT
- Threat
- DUALS(3)
- Vars
- B(e);XQ(D)::S(B),XB(e)
- S(c);XS(H)::QAR1(D)
- Refutation
- R(f);P_PINQ(D),XP(J)
- Try
- K(A);N_SPINQ(D),S_FLIGHT
- Threat
- DUALS(3)
- Vars
- B(e);XQ(D)::S(B),XB(e)
- S(c);XS(H)::QAR1(D)
- Refutation
- R(f);XP(J)
- Try
- S(B);N_SPINQ(D)
- Threat
- DUALS(3)
- Vars
- B(e);OGATE,P_PINQ(D),XS(B)::QAR1(D),XB(e)
- S(c);XS(H)::QAR1(D)
- Refutation
- R(f);XP(J)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- B(e);CHECK,XQ(D)::S(B),XB(e)
- B(i);XS(H)::B(K)
- B(i);::S(H)
- S(c);::S(H)
- Refutation
- R(f);XS(H)
- Try
- B(G);N_SPINQ(D)
- Threat
- DUALS(3)
- Refutation
- B(e);P_PINQ(D),XB(G)
- Try
- B(G);
- Threat
- S(B)
- Vars
- B(e);CHECK,XQ(D)::S(B),XB(e)
- P(d);N_PINQ(D)::QAB1(D)
- B(e);N_GUARD::QAR1(D),XB(e)
- Refutation
- B(i);XR(I)
- Try
- R(I);
- Threat
- R1(I)
- Vars
- B(e);CHECK,XQ(D)::S(B),XB(e)
- B(e);N_GUARD::QAR1(D),XB(e)
- P(d);N_PINQ(D)::QAR1(D)
- Refutation
- R(f);XP(J)
- Try
- Q(D);N_SPINQ(D),XB(e)
- Threat
- DUALS(3)
- Refutation
- Q(h);CHECK,XQ(D)
- Try
- Actual
- S(H);
- Threat
- S(H)
- Vars
- B(e);CHECK,XQ(D)::S(B),XB(e)
- R(f);N_GUARD::B(K),XR(f)
- B(e);N_GUARD::QAR1(D),XB(e)
- P(d);N_PINQ(D)::QAR(D)
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).