MESON Chess Problem Database
Problem Display
PID: 49243 (4R3/3K2p1/1pRB1p2/3k4/1P5Q/n6N/2n5/7b w - - 0 1)
Pilchenko, Viacheslav Karlovich
2nd HM., 64 Shakhmatnoe obozrenie, 1986
#2
7 + 7
| 5159 | FIDE Album (1986-1988) (Annexe) | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Be4
- 2.Qxe4#
- 1...Sd4
- 2.Sf4#
- 1...Sb1
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb5
- 2.Qc4#
- 1...b5
- 2.Rc5#
- 1...f5
- 2.Re5#
- 1...Be4
- Tries
- 1.Bh2?
- threat
- 2.Rd6#
- 1...Be4
- 2.Qxe4#
- 1...Sd4
- 2.Sf4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb5
- 2.Qc4#
- 1...Sxb4!
- threat
- 1.Bg3?
- threat
- 2.Rd6#
- 1...Be4
- 2.Qxe4#
- 1...Sd4
- 2.Sf4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb5
- 2.Qc4#
- 1...Sxb4!
- threat
- 1.Bc5?
- threat
- 2.Rd6#
- 1...Sxb4
- 2.Qd4#
- 1...Be4
- 2.Qxe4#
- 1...Sd4
- 2.Qxd4#
- 1...Sc4
- 2.Sf4#
- 1...Sb5!
- threat
- 1.Bc7?
- threat
- 2.Rd6#
- 1...Be4
- 2.Qxe4#
- 1...Sd4
- 2.Sf4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb5
- 2.Qc4#
- 1...Sxb4!
- threat
- 1.Bb8?
- threat
- 2.Rd6#
- 1...Be4
- 2.Qxe4#
- 1...Sd4
- 2.Sf4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb5
- 2.Qc4#
- 1...Sxb4!
- threat
- 1.Bf8?
- threat
- 2.Rd6#
- 1...Be4
- 2.Qxe4#
- 1...Sd4
- 2.Sf4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb5
- 2.Qc4#
- 1...Sxb4!
- threat
- 1.Rxc2?
- threat
- 2.Rd2#
- 1...Be4
- 2.Qxe4#
- 1...Sb1
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb5
- 2.Qc4#
- 1...Sxc2!
- threat
- 1.Qf2?
- threat
- 2.Sf4#
- 1...Se3
- 2.Qd2#
- 1...g5!
- threat
- 1.Qxf6?
- threat
- 2.Sf4#
- 2.Qe5#
- 1...Sc4
- 2.Sf4#
- 1...g5
- 2.Qe5#
- 1...gxf6!
- threat
- 1.Qd4+?
- 1...Sxd4
- 2.Sf4#
- 1...Kxd4!
- 1...Sxd4
- 1.Bh2?
- Keys
- 1.Be5!
- threat
- 2.Rd6#
- 1...Sxb4
- 2.Qd4#
- 1...Be4
- 2.Sf4#
- 1...Sd4
- 2.Qxd4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb5
- 2.Qc4#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- B(a);N_GUARD::QAB1(C),XB(a)
- S(b);SBLOCK::S(A)
- S(c);N_GUARD::QAB1(C)
- S(c);N_GUARD::QAB1(C),XS(c)
- P(e);N_GUARD::R1(D)
- P(f);N_GUARD::R1(G)
- Tries
- Try
- B(E);
- Threat
- R1(D)
- Vars
- B(a);N_GUARD::QAB1(C),XB(a)
- S(b);SBLOCK::S(A)
- S(c);N_GUARD::QAB1(C),XS(c)
- S(c);N_GUARD::QAB1(C)
- Refutation
- S(b);XP(B)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- B(a);N_GUARD::QAB1(C),XB(a)
- S(b);SBLOCK::S(A)
- S(c);N_GUARD::QAB1(C),XS(c)
- S(c);N_GUARD::QAB1(C)
- Refutation
- S(b);XP(B)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- S(b);N_GUARD,XP(B)::QAR1(C)
- B(a);N_GUARD::QAB1(C),XB(a)
- S(b);N_GUARD::QAR1(C),XS(b)
- S(c);SBLOCK::S(A)
- Refutation
- S(c);
- Try
- B(E);
- Threat
- R1(D)
- Vars
- B(a);N_GUARD::QAB1(C),XB(a)
- S(b);SBLOCK::S(A)
- S(c);N_GUARD::QAB1(C),XS(c)
- S(c);N_GUARD::QAB1(C)
- Refutation
- S(b);XP(B)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- B(a);N_GUARD::QAB1(C),XB(a)
- S(b);SBLOCK::S(A)
- S(c);N_GUARD::QAB1(C),XS(c)
- S(c);N_GUARD::QAB1(C)
- Refutation
- S(b);XP(B)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- B(a);N_GUARD::QAB1(C),XB(a)
- S(b);SBLOCK::S(A)
- S(c);N_GUARD::QAB1(C),XS(c)
- S(c);N_GUARD::QAB1(C)
- Refutation
- S(b);XP(B)
- Try
- R(D);XS(b)
- Threat
- R(D)
- Vars
- B(a);N_GUARD::QAB1(C),XB(a)
- S(c);N_GUARD::QAB1(C)
- S(c);N_GUARD::QAB1(C),XS(c)
- Refutation
- S(c);XR(D)
- Try
- Q(C);
- Threat
- S(A)
- Vars
- S(b);N_GUARD::QAR(C)
- Refutation
- P(g);
- Try
- Q(C);XP(f)
- Threat
- DUALS(2)
- Vars
- S(c);::S(A)
- P(g);::QAR1(C)
- Refutation
- P(g);XQ(C)
- Try
- Q(C);CHECK
- Vars
- S(b);SBLOCK,XQ(C)::S(A)
- Refutation
- K(d);P-FLIGHT,XQ(C)
- Try
- Actual
- B(E);
- Threat
- R1(D)
- Vars
- S(b);N_GUARD,XP(B)::QAR1(C)
- B(a);SBLOCK::S(A)
- S(b);N_GUARD::QAR1(C),XS(b)
- S(c);N_GUARD::QAB1(C),XS(c)
- S(c);N_GUARD::QAB1(C)
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).