MESON Chess Problem Database
Problem Display
PID: 177814 (2B5/b3p1pb/r2p4/pR4K1/RN1nkp2/3p3Q/n2r2p1/B5N1 w - - 0 1)
Pletenev, Nikolai Alexeyevich
Sahs (Latvia), 1984
#2
8 + 14
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Qxd3#
- 1...Rc2
- 2.Qxd3#
- 1...Re2
- 2.Qxd3#
- 1...Rf2
- 2.Qxd3#
- 1...Sc2
- 2.Qe6#
- 2.Qf3#
- 1...Se2
- 2.Qe6#
- 2.Qf3#
- 1...Sb3
- 2.Qe6#
- 2.Qf3#
- 1...Sf3+
- 2.Qxf3#
- 1...Sxb5
- 2.Qe6#
- 2.Qf3#
- 1...Sf5
- 2.Qf3#
- 1...Sc6
- 2.Qf3#
- 1...Se6+
- 2.Qxe6#
- 1...Rb2
- Tries
- 1.Sxa2?
- threat
- 2.Sc3#
- 2.Qe6#
- 2.Qf3#
- 1...Rxa2
- 2.Qe6#
- 2.Qf3#
- 1...Bc5
- 2.Qe6#
- 1...f3
- 2.Qe6#
- 2.Qxf3#
- 1...Rc2
- 2.Qe6#
- 2.Qf3#
- 1...Rf2
- 2.Sc3#
- 2.Qe6#
- 1...Rc6
- 2.Qe6#
- 2.Qf3#
- 1...Bf5
- 2.Sc3#
- 2.Bxf5#
- 2.Qf3#
- 1...Bg8
- 2.Sc3#
- 2.Bf5#
- 2.Qf3#
- 1...e5
- 2.Sc3#
- 2.Qf3#
- 1...e6
- 2.Sc3#
- 2.Qxe6#
- 2.Qf3#
- 1...d5!
- threat
- 1.Sxd3?
- threat
- 2.Qf3#
- 1...Rxd3
- 2.Qe6#
- 1...f3
- 2.Qxf3#
- 1...Rf2
- 2.Sxf2#
- 1...Sb4!
- threat
- 1.Sxa6?
- threat
- 2.Qe6#
- 2.Qf3#
- 1...Bc5
- 2.Qe6#
- 1...f3
- 2.Qe6#
- 2.Qxf3#
- 1...d5
- 2.Qe6#
- 1...Rf2
- 2.Qe6#
- 1...Bf5
- 2.Bxf5#
- 2.Qf3#
- 1...Bg8
- 2.Bf5#
- 2.Qf3#
- 1...e5
- 2.Qf3#
- 1...e6
- 2.Qxe6#
- 2.Qf3#
- 1...Sb4!
- threat
- 1.Sc6?
- threat
- 2.Qe6#
- 2.Qf3#
- 1...f3
- 2.Qe6#
- 2.Qxf3#
- 1...Rf2
- 2.Qe6#
- 1...Bf5
- 2.Bxf5#
- 2.Qf3#
- 1...Bg8
- 2.Bf5#
- 2.Qf3#
- 1...e5
- 2.Qf3#
- 1...e6
- 2.Qxe6#
- 2.Qf3#
- 1...Sb4!
- threat
- 1.Bf5+?
- 1...Sxf5
- 2.Qf3#
- 1...Bxf5!
- 1...Sxf5
- 1.Re5+?
- 1...Kxe5
- 2.Qe6#
- 1...dxe5!
- 1...Kxe5
- 1.Sxa2?
- Keys
- 1.Sd5!
- threat
- 2.Qe6#
- 1...Ke5
- 2.Qe6#
- 1...Sb4
- 2.Sc3#
- 1...Bf5
- 2.Qxf5#
- 1...Bg8
- 2.Qf5#
- 1...e5
- 2.Qf3#
- 1...e6
- 2.Qxe6#
- threat
- 1.Sd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 8
- Sets
- R(b);N_GUARD::QAB1(C),XP(d)
- S(e);CHECK,N_GUARD::QAB1(C),XS(e)
- S(e);N_GUARD::QAB1(C)
- S(e);CHECK,N_GUARD::QAR2(C),XS(e)
- Tries
- Try
- S(E);P_PINS(e),XS(a)
- Threat
- DUALS(3)
- Vars
- B(k);::QAR2(C)
- Refutation
- P(j);
- Try
- S(E);P_PINS(e),XP(d)
- Threat
- QAB1(C)
- Vars
- R(b);SBLOCK,XS(E)::QAR2(C)
- P(g);::QAB1(C),XP(g)
- R(b);N_GUARD::S(E),XR(b)
- Refutation
- S(a);N_SPINS(e)
- Try
- S(E);P_PINS(e),XR(i)
- Threat
- DUALS(2)
- Vars
- B(k);::QAR2(C)
- P(j);::QAR2(C)
- R(b);::QAR2(C)
- P(l);::QAB1(C)
- Refutation
- S(a);N_SPINS(e)
- Try
- S(E);P_PINS(e)
- Threat
- DUALS(2)
- Vars
- R(b);::QAR2(C)
- P(l);::QAB1(C)
- Refutation
- S(a);N_SPINS(e)
- Try
- B(H);CHECK
- Vars
- S(e);XB(H)::QAB1(C)
- Refutation
- B(n);XB(H)
- Try
- R(F);CHECK
- Vars
- K(f);P-FLIGHT,P_SPINS(e),XR(F)::QAR1(C)
- Refutation
- P(j);XR(F)
- Try
- Actual
- S(E);P_PINS(e)
- Threat
- QAR2(C)
- Vars
- K(f);P-FLIGHT::QAR1(C)
- S(a);N_GUARD,N_SPINS(e)::S(E)
- B(n);N_GUARD::QAB1(C),XB(n)
- B(n);N_GUARD::QAB1(C)
- P(l);SBLOCK::QAB1(C)
- P(l);::QAR2(C),XP(l)
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).