MESON Chess Problem Database
Problem Display
PID: 6106 (2K1Q3/B2p2bb/3P4/4N3/1RB1kP2/2q1N1Pp/8/2n1R3 w - - 0 1)
Ellerman, Arnoldo
Chemnitzer Tageblatt, 1927
#2
11 + 7
| 5137 | 1001 Problemas | 1945 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Bd3#
- 2.Bd5#
- 1...Qxe1
- 2.Bd3#
- 2.Bd5#
- 1...Qb2
- 2.Bd3#
- 2.Bd5#
- 1...Qd2
- 2.Bd3#
- 2.Bd5#
- 1...Qxb4
- 2.Bd5#
- 1...Qd4
- 2.Bd5#
- 1...Qxe5
- 2.Be2#
- 1...Qa3
- 2.Bd3#
- 2.Bd5#
- 1...Qb3
- 2.Bxb3#
- 2.Bd3#
- 2.Bd5#
- 1...Qd3
- 2.Bxd3#
- 2.Bd5#
- 1...Qxe3
- 2.Be6#
- 1...Qxc4+
- 2.Rxc4#
- 1...Bg6
- 2.Qxg6#
- 1...Bg8
- 2.Qg6#
- 1...Qa1
- Tries
- 1.Kxd7?
- threat
- 2.Bd3#
- 2.Bd5#
- 2.Qa8#
- 1...Qxb4
- 2.Bd5#
- 1...Qxe5
- 2.Be2#
- 1...Qxe3
- 2.Be6#
- 1...Qxc4
- 2.Rxc4#
- 2.Qa8#
- 1...Bxe5
- 2.Qa8#
- 1...Qd2
- 2.Bd3#
- 2.Bd5#
- 1...Qd4
- 2.Bd5#
- 1...Qd3
- 2.Bxd3#
- 2.Bd5#
- 1...Bg8
- 2.Bd3#
- 2.Bd5#
- 2.Qg6#
- 1...Sd3
- 2.Bxd3#
- 2.Bd5#
- 2.Qa8#
- 1...Bf5+!
- threat
- 1.Sf3+?
- 1...Qe5
- 2.Sd2#
- 2.Sg5#
- 2.Be2#
- 1...Be5
- 2.Sg5#
- 1...Kxf3!
- 1...Qe5
- 1.Sf7+?
- 1...Qe5
- 2.Sg5#
- 2.Be2#
- 1...Be5
- 2.Sg5#
- 1...Kf3!
- 1...Qe5
- 1.Bc5?
- threat
- 2.Bd3#
- 2.Bd5#
- 1...Qxb4
- 2.Bd5#
- 1...Qxe5
- 2.Be2#
- 1...Qxe3
- 2.Be6#
- 1...Qxc4
- 2.Rxc4#
- 1...Qd4
- 2.Bd5#
- 1...Qd3
- 2.Bxd3#
- 2.Bd5#
- 1...Sd3
- 2.Bxd3#
- 2.Bd5#
- 1...Bxe5!
- threat
- 1.Qxd7?
- threat
- 2.Qc6#
- 2.Qb7#
- 1...Qxc4+
- 2.Rxc4#
- 2.Qc6#
- 1...Qxb4
- 2.Bd5#
- 2.Qc6#
- 1...Qxe3
- 2.Ba2#
- 2.Bb3#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 2.Rxe3#
- 1...Qd2
- 2.Bd3#
- 2.Bd5#
- 1...Qd4
- 2.Bd5#
- 1...Qd3
- 2.Bxd3#
- 2.Bd5#
- 1...Bf5
- 2.Qxf5#
- 1...Bg8
- 2.Qf5#
- 1...Qxe5!
- threat
- 1.Qf7?
- threat
- 2.Qd5#
- 1...Qxc4+
- 2.Rxc4#
- 2.Qxc4#
- 1...Qxe3
- 2.Bf1#
- 2.Ba2#
- 2.Bb3#
- 2.Bd3#
- 2.Bb5#
- 2.Bd5#
- 2.Ba6#
- 2.Be6#
- 2.Rxe3#
- 1...Qd2
- 2.Bd3#
- 2.Bd5#
- 1...Qd4
- 2.Bd5#
- 1...Qd3
- 2.Bxd3#
- 2.Bd5#
- 1...Bg8
- 2.Qg6#
- 2.Qf5#
- 1...Qxe5!
- threat
- 1.Qe6?
- threat
- 2.Qd5#
- 1...Qxc4+
- 2.Rxc4#
- 2.Qxc4#
- 1...Qxe5
- 2.Be2#
- 1...Qxe3
- 2.Bf1#
- 2.Ba2#
- 2.Bb3#
- 2.Bd3#
- 2.Bb5#
- 2.Bd5#
- 2.Ba6#
- 2.Rxe3#
- 1...Qd2
- 2.Bd3#
- 2.Bd5#
- 1...Qd4
- 2.Bd5#
- 1...Qd3
- 2.Bxd3#
- 2.Bd5#
- 1...Bg8
- 2.Qf5#
- 2.Qg6#
- 1...dxe6!
- threat
- 1.Kxd7?
- Keys
- 1.Kc7!
- threat
- 2.Qa8#
- 1...Qxc4+
- 2.Rxc4#
- 1...Qxb4
- 2.Bd5#
- 1...Qxe5
- 2.Be2#
- 1...Qxe3
- 2.Be6#
- 1...Qd2
- 2.Bd3#
- 2.Bd5#
- 1...Qd4
- 2.Bd5#
- 1...Qd3
- 2.Bxd3#
- 2.Bd5#
- 1...Bg8
- 2.Qg6#
- threat
- 1.Kc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- Q(b);N_PINB(E),XR(D)::B(E)
- Q(b);N_PINB(E)::B(E)
- Q(b);N_PINB(E),P_SPINQ(b),XS(G)::R(D)+B(E)
- Q(b);N_PINB(E),P_SPINQ(b),XS(B)::R(D)+B(E)
- Q(b);CHECK,OGATE,P_SPINQ(b),XB(E)::R(D),XQ(b)
- B(g);N_GUARD::QAB(K),XB(g)
- B(g);N_GUARD::QAB(K)
- Tries
- Try
- K(J);N_SPINB(E),S_FLIGHT,XP(e)
- Threat
- DUALS(3)
- Vars
- Q(b);XR(D)::B(E)
- Q(b);N_GUARD,P_SPINQ(b),XS(G)::R(D)+B(E)
- Q(b);N_GUARD,P_SPINQ(b),XS(B)::R(D)+B(E)
- B(f);P_SPINB(f),XS(G)::QAB(K)
- Q(b);P_PINP(H)::B(E)
- Refutation
- B(g);CHECK
- Try
- S(G);CHECK
- Vars
- B(f);P_SPINB(f)::S(G)
- Refutation
- K(d);S_FLIGHT,XS(G)
- Try
- S(G);CHECK
- Vars
- B(f);P_SPINB(f)::S(G)
- Refutation
- K(d);S_FLIGHT
- Try
- B(I);N_SPINB(E)
- Threat
- DUALS(2)
- Vars
- Q(b);XR(D)::B(E)
- Q(b);N_GUARD,P_SPINQ(b),XS(G)::R(D)+B(E)
- Q(b);N_GUARD,P_SPINQ(b),XS(B)::R(D)+B(E)
- Q(b);OGATE,P_PINB(I),P_SPINQ(b),XB(E)::R(D),XQ(b)
- Q(b);::B(E)
- Refutation
- B(f);P_SPINB(f),XS(G)
- Try
- Q(K);XP(e)
- Threat
- DUALS(2)
- Vars
- Q(b);N_PINB(E)::B(E)
- B(g);N_GUARD,P_PINQ(K)::QAB1(K),XB(g)
- B(g);N_GUARD::QAB1(K)
- Refutation
- Q(b);N_PINB(E),XS(G)
- Try
- Q(K);
- Threat
- QAB1(K)
- Vars
- Q(b);N_PINB(E)::B(E)
- Refutation
- Q(b);N_PINB(E),XS(G)
- Try
- Q(K);
- Threat
- QAB1(K)
- Vars
- Q(b);N_PINB(E),P_SPINQ(b),XS(G)::R(D)+B(E)
- Q(b);N_PINB(E)::B(E)
- Refutation
- P(e);XQ(K)
- Try
- Actual
- K(J);P-FLIGHT
- Threat
- QAB(K)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XB(E)::R(D),XQ(b)
- Q(b);N_PINB(E),XR(D)::B(E)
- Q(b);N_PINB(E),P_PINP(H),P_SPINQ(b),XS(G)::R(D)+B(E)
- Q(b);N_PINB(E),P_SPINQ(b),XS(B)::R(D)+B(E)
- Q(b);N_PINB(E)::B(E)
- B(g);N_GUARD::QAB(K)
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).