MESON Chess Problem Database
Problem Display
PID: 11149 (R3n3/KQ3r2/2p1bB2/2Rn4/k7/6br/P1N2p2/8 w - - 0 1)
Krelenbaum, Szaja
1st Prize, Wiadomoscy Szachowy, 1936
#2
7 + 9
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
SOLUTION
- SOUND
- Sets
- 1...Rxf6
- 2.Qa6#
- 2.Qxc6#
- 2.Qb3#
- 1...Rxb7+
- 2.Kxb7#
- 1...Rc7
- 2.Kb8#
- 1...Rf8
- 2.Qa6#
- 2.Qxc6#
- 2.Qb3#
- 1...Bh4
- 2.Kb8#
- 1...Bc7
- 2.Qxc6#
- 1...Bb8+
- 2.Kxb8#
- 1...Bd7
- 2.Qa6#
- 2.Qb3#
- 1...Sc3
- 2.Kb6#
- 1...Se3
- 2.Kb6#
- 1...Sf4
- 2.Kb6#
- 2.Kb8#
- 1...Sb6
- 2.Kxb6#
- 1...Sdxf6
- 2.Kb6#
- 1...Sdc7
- 2.Qb4#
- 1...Se7
- 2.Kb6#
- 2.Qa6#
- 2.Qb4#
- 1...Sd6
- 2.Kb8#
- 1...Sec7
- 2.Qb3#
- 1...Rxf6
- Tries
- 1.Bc3?
- threat
- 2.Ra5#
- 1...Rxb7+
- 2.Kxb7#
- 1...Bb8+
- 2.Kxb8#
- 1...Sxc3
- 2.Kb6#
- 1...Bc7
- 2.Qxc6#
- 2.Qb3#
- 1...Sb4!
- threat
- 1.Be7?
- threat
- 2.Qa6#
- 2.Qxc6#
- 2.Qb3#
- 1...Bb8+
- 2.Kxb8#
- 1...Sxe7
- 2.Kb6#
- 2.Qa6#
- 2.Qb4#
- 1...f1Q
- 2.Qb3#
- 1...f1B
- 2.Qb3#
- 1...Rf3
- 2.Qa6#
- 2.Qxc6#
- 1...Bh2
- 2.Qa6#
- 2.Qxc6#
- 1...Bf4
- 2.Qa6#
- 2.Qxc6#
- 1...Bh4
- 2.Kb8#
- 2.Qa6#
- 2.Qxc6#
- 1...Be5
- 2.Qa6#
- 2.Qxc6#
- 1...Bd6
- 2.Qa6#
- 2.Qxc6#
- 1...Bc7
- 2.Qxc6#
- 1...Bd7
- 2.Qa6#
- 2.Qb3#
- 1...Bc8
- 2.Qxc6#
- 2.Qb3#
- 1...Sc3
- 2.Kb6#
- 2.Qa6#
- 2.Qb4#
- 1...Se3
- 2.Kb6#
- 2.Qa6#
- 2.Qxc6#
- 2.Qb4#
- 1...Sb4
- 2.Qxb4#
- 1...Sf4
- 2.Kb6#
- 2.Kb8#
- 2.Qa6#
- 2.Qxc6#
- 2.Qb4#
- 1...Sb6
- 2.Kxb6#
- 2.Qa6#
- 2.Qxc6#
- 1...Sdf6
- 2.Kb6#
- 2.Qa6#
- 2.Qxc6#
- 2.Qb4#
- 1...Sdc7
- 2.Qb4#
- 1...Sd6
- 2.Kb8#
- 2.Qa6#
- 2.Qb3#
- 1...Sec7
- 2.Qb3#
- 1...Rxe7!
- threat
- 1.Rc4+?
- 1...Sb4
- 2.Kb6#
- 1...Ka5!
- 1...Sb4
- 1.Bc3?
- Keys
- 1.Bd8!
- threat
- 2.Ra5#
- 1...Rxb7+
- 2.Kxb7#
- 1...Bb8+
- 2.Kxb8#
- 1...Rc7
- 2.Kb8#
- 1...Bc7
- 2.Qxc6#
- 1...Sb6
- 2.Kxb6#
- 1...Sdc7
- 2.Qb4#
- 1...Sec7
- 2.Qb3#
- threat
- 1.Bd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- R(h);CHECK,XQ(F)::R(G)+K(E),XR(h)
- R(h);::R(G)+K(E)
- B(b);::R(G)+K(E)
- B(b);N_PINQ(F)::QAB(F),XP(f)
- B(b);CHECK::R(G)+K(E),XB(b)
- S(e);::R(G)+K(E)
- S(e);::R(G)+K(E),XS(e)
- S(e);XB(D)::R(G)+K(E)
- S(e);N_PINQ(F)::QAR1(F)
- S(i);::R(G)+K(E)
- S(i);N_PINQ(F)::QAB1(F)
- Tries
- Try
- B(D);
- Threat
- R1(C)
- Vars
- R(h);CHECK,XQ(F)::R(G)+K(E),XR(h)
- B(b);CHECK::R(G)+K(E),XB(b)
- S(e);XB(D)::R(G)+K(E)
- Refutation
- S(e);
- Try
- B(D);N_SPINQ(F)
- Threat
- DUALS(3)
- Vars
- B(b);CHECK::R(G)+K(E),XB(b)
- P(a);::QAB1(F)
- B(b);::QAB(F),XP(f)
- S(e);N_GUARD::QAR1(F),XS(e)
- S(e);N_GUARD::QAR1(F)
- S(i);::QAB1(F)
- Refutation
- R(h);P_PINQ(F),XB(D)
- Try
- R(C);CHECK
- Vars
- S(e);P_SPINS(e)::R(G)+K(E)
- Refutation
- K(d);P-FLIGHT
- Try
- Actual
- B(D);
- Threat
- R1(C)
- Vars
- R(h);CHECK,XQ(F)::R(G)+K(E),XR(h)
- B(b);CHECK::R(G)+K(E),XB(b)
- R(h);::R(G)+K(E)
- B(b);N_PINQ(F)::QAB(F),XP(f)
- S(e);::R(G)+K(E),XS(e)
- S(e);N_PINQ(F)::QAR1(F)
- S(i);N_PINQ(F)::QAB1(F)
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).