MESON Chess Problem Database
Problem Display
PID: 258094 (8/8/2R5/7B/2P1p3/2pk4/5Q2/Rb2K3 w Q - 0 1)
Nemo, Ottmar (Weiss, Ottmar)
Die Schwalbe, 1931
#2
6 + 4
SOLUTION
- SOUND
- Sets
- 1...Ba2
- 2.Rd1#
- 2.0-0-0#
- 1...Bc2
- 2.Be2#
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...Ba2
- Tries
- 1.Bd1?
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...Ba2
- 2.Bc2#
- 1...Bc2
- 2.Bxc2#
- 2.Be2#
- 1...e3!
- 1...c2
- 1.Bg4?
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...Ba2
- 2.Rd1#
- 2.0-0-0#
- 1...Bc2
- 2.Be2#
- 1...e3!
- 1...c2
- 1.Bg6?
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...Ba2
- 2.Rd1#
- 2.0-0-0#
- 1...Bc2!
- 1...c2
- 1.Bf7?
- threat
- 2.Rd6#
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...e3!
- threat
- 1.Rxb1?
- threat
- 2.Rd1#
- 1...c2
- 2.Rb3#
- 2.Qd2#
- 1...e3!
- threat
- 1.Ra4?
- threat
- 2.Rd6#
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...e3!
- threat
- 1.Ra5?
- threat
- 2.Rd5#
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...e3!
- threat
- 1.Ra7?
- threat
- 2.Rd7#
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...e3!
- threat
- 1.Ra8?
- threat
- 2.Rd8#
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...e3!
- threat
- 1.Rc5?
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...Bc2
- 2.Be2#
- 1...Ba2
- 2.Rd1#
- 2.0-0-0#
- 1...e3!
- 1...c2
- 1.Rc7?
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...Bc2
- 2.Be2#
- 1...Ba2
- 2.Rd1#
- 2.0-0-0#
- 1...e3!
- 1...c2
- 1.Rc8?
- 1...c2
- 2.Ra3#
- 2.Qd2#
- 1...Bc2
- 2.Be2#
- 1...Ba2
- 2.Rd1#
- 2.0-0-0#
- 1...e3!
- 1...c2
- 1.Qc5?
- 1...e3
- 2.Bg6#
- 1...Bc2
- 2.Be2#
- 2.Rd6#
- 1...Ba2
- 2.0-0-0#
- 1...c2
- 2.Ra3#
- 1...Kc2!
- 1...e3
- 1.Qa7?
- 1...e3
- 2.Bg6#
- 1...Bc2
- 2.Be2#
- 1...Ba2
- 2.0-0-0#
- 1...c2
- 2.Ra3#
- 1...Kc2!
- 1...e3
- 1.Bd1?
- Keys
- 1.Qb6!
- 1...Kc2
- 2.Qxb1#
- 1...e3
- 2.Bg6#
- 1...Bc2
- 2.Be2#
- 1...Ba2
- 2.0-0-0#
- 1...c2
- 2.Ra3#
- 1...Kc2
- 1.Qb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(a);SBLOCK::B(E)
- Tries
- Try
- B(E);
- Vars
- B(a);N_GUARD::B(E)
- Refutation
- P(d);
- Try
- B(E);
- Vars
- B(a);SBLOCK::B(E)
- Refutation
- P(d);
- Try
- B(E);P_PINP(d)
- Refutation
- B(a);
- Try
- B(E);
- Threat
- R(F)
- Refutation
- P(d);
- Try
- R(A);XB(a)
- Threat
- R(A)
- Refutation
- P(d);
- Try
- R(A);
- Threat
- R(F)
- Refutation
- P(d);
- Try
- R(A);
- Threat
- R(A)
- Refutation
- P(d);
- Try
- R(A);
- Threat
- R(A)
- Refutation
- P(d);
- Try
- R(A);
- Threat
- R(A)
- Refutation
- P(d);
- Try
- R(F);
- Vars
- B(a);SBLOCK::B(E)
- Refutation
- P(d);
- Try
- R(F);
- Vars
- B(a);SBLOCK::B(E)
- Refutation
- P(d);
- Try
- R(F);
- Vars
- B(a);SBLOCK::B(E)
- Refutation
- P(d);
- Try
- Q(C);
- Vars
- P(d);OGATEB::B(E)
- B(a);::0-0-0
- P(b);OGATEB,SBLOCK::R(A)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(C);
- Vars
- P(d);OGATEB::B(E)
- B(a);SBLOCK::B(E)
- B(a);::0-0-0
- P(b);OGATEB,SBLOCK::R(A)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- Q(C);
- Vars
- K(c);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(C),XB(a)
- P(d);OGATEB::B(E)
- B(a);SBLOCK::B(E)
- B(a);::0-0-0
- P(b);OGATEB,SBLOCK::R(A)
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).