MESON Chess Problem Database
Problem Display
PID: 173113 (1NNR4/2P1K3/p7/P1k1B1nR/Pp3Qr1/8/3pqp2/5B2 w - - 0 1)
Barulin, Mikhail Mikhailovich
64 Shakhmatnoe obozrenie, 1930
#2
11 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Bd4#
- 1...Qf3
- 2.Bd4#
- 1...Qb5
- 2.Bd4#
- 1...Qxe5+
- 2.Qxe5#
- 1...Rg1
- 2.Qd4#
- 1...Rg2
- 2.Qd4#
- 1...Rg3
- 2.Qd4#
- 1...Se6
- 2.Bd6#
- 1...Qd1
- Tries
- 1.Sb6?
- threat
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Qxe5+
- 2.Qxe5#
- 1...Qxf1
- 2.Bd4#
- 2.Bd6#
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Rxf4
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...d1Q
- 2.c8Q#
- 2.c8R#
- 1...d1S
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...d1B
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...d1R
- 2.c8Q#
- 2.c8R#
- 1...Qd1
- 2.Bd4#
- 2.Bd6#
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Qd3
- 2.c8Q#
- 2.c8R#
- 1...Qf3
- 2.Bd4#
- 2.Bd6#
- 1...Qc4
- 2.Bd6#
- 2.c8Q#
- 2.c8R#
- 1...Qb5
- 2.Bd4#
- 2.Bd6#
- 2.Rd5#
- 1...Qe1
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Qe3
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Rg1
- 2.Rd5#
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...Rg2
- 2.Rd5#
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...Rg3
- 2.Rd5#
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...Rh4
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Sf3
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Sh3
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Se4
- 2.Bd4#
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Se6
- 2.Bd4#
- 2.Bd6#
- 2.Rd5#
- 1...Sf7
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Sh7
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...b3
- 2.Rd5#
- 2.c8Q#
- 2.c8R#
- 1...Qe4!
- threat
- 1.Rh6?
- threat
- 2.Rc6#
- 1...Qxe5+
- 2.Qxe5#
- 1...Qf3
- 2.Sxa6#
- 2.Bd4#
- 1...Qb5
- 2.Bd4#
- 1...Qe4
- 2.Sxa6#
- 1...Se6!
- threat
- 1.Qe3+?
- 1...Kc4
- 2.Sb6#
- 2.Bxe2#
- 1...Rd4
- 2.Qxd4#
- 1...Qxe3!
- 1...Kc4
- 1.Sb6?
- Keys
- 1.Sa7!
- threat
- 2.c8Q#
- 2.c8R#
- 1...Qxe5+
- 2.Qxe5#
- 1...Qxf1
- 2.c8Q#
- 2.c8R#
- 1...Rxf4
- 2.c8Q#
- 2.c8R#
- 1...Se4
- 2.c8Q#
- 2.c8R#
- 1...d1Q
- 2.c8Q#
- 2.c8R#
- 1...d1S
- 2.c8Q#
- 2.c8R#
- 1...d1B
- 2.c8Q#
- 2.c8R#
- 1...d1R
- 2.c8Q#
- 2.c8R#
- 1...Qd1
- 2.Sxa6#
- 2.Bd4#
- 2.c8Q#
- 2.c8R#
- 1...Qd3
- 2.c8Q#
- 2.c8R#
- 1...Qf3
- 2.Sxa6#
- 2.Bd4#
- 1...Qc4
- 2.c8Q#
- 2.c8R#
- 1...Qb5
- 2.Bd4#
- 1...Qe1
- 2.Sxa6#
- 2.c8Q#
- 2.c8R#
- 1...Qe3
- 2.Sxa6#
- 2.c8Q#
- 2.c8R#
- 1...Qe4
- 2.Sxa6#
- 1...Rg1
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...Rg2
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...Rg3
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...Rh4
- 2.c8Q#
- 2.c8R#
- 1...Sf3
- 2.c8Q#
- 2.c8R#
- 1...Sh3
- 2.c8Q#
- 2.c8R#
- 1...Se6
- 2.Bd6#
- 1...Sf7
- 2.c8Q#
- 2.c8R#
- 1...Sh7
- 2.c8Q#
- 2.c8R#
- 1...b3
- 2.c8Q#
- 2.c8R#
- threat
- 1.Sa7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- Q(b);N_PINB(E)::B(E)
- Q(b);CHECK,OGATE,XB(E)::QAR2(C),XQ(b)
- R(e);N_GUARD::QAB1(C)
- S(g);N_PINB(E)::R(F)+B(E),DCHECK
- Tries
- Try
- S(J);
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,OGATE,XB(E)::QAR2(C),XQ(b)
- P(a);::P=Q
- Q(b);N_PINB(E)::P=Q
- Refutation
- Q(b);
- Try
- R(F);
- Threat
- R1(F)
- Vars
- Q(b);CHECK,OGATE,XB(E)::QAR2(C),XQ(b)
- Q(b);N_PINB(E)::B(E)
- Q(b);N_GUARD::S(I),XP(h)
- Refutation
- S(g);N_PINB(E)
- Try
- Q(C);CHECK,N_SPINB(E)
- Vars
- R(e);N_GUARD,P_SPINR(e)::QAB1(C),XR(e)
- Refutation
- Q(b);P_PINB(E),XQ(C)
- Try
- Actual
- S(J);
- Threat
- P=Q
- Vars
- Q(b);CHECK,OGATE,XB(E)::QAR2(C),XQ(b)
- Q(b);N_PINB(E),XB(A)::P=Q
- R(e);XQ(C)::P=Q
- S(g);N_PINB(E)::P=Q
- P(a);::P=Q
- Q(b);N_PINB(E)::P=Q
- Q(b);N_PINB(E)::B(E)
- Q(b);N_GUARD::S(I),XP(h)
- R(e);::P=Q
- S(g);::P=Q
- S(g);N_PINB(E)::R(F)+B(E),DCHECK
- P(d);::P=Q
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).