MESON Chess Problem Database
Problem Display
PID: 238595 (5BK1/3p1Q2/1n6/qpp1n1R1/p2k2p1/2pP1p2/NP3Pr1/NBR5 w - - 0 1)
Murashev, Pavel Aleksandrovich
Problemist Ukraini, 2012
#2
11 + 12
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa6
- 2.bxc3#
- 1...Qa7
- 2.bxc3#
- 1...Qa8
- 2.bxc3#
- 1...Sec4
- 2.Bxc5#
- 2.Qf4#
- 1...Sc6
- 2.Bxc5#
- 2.Qf4#
- 1...Sg6
- 2.Bxc5#
- 1...Sxf7
- 2.Bxc5#
- 1...cxb2
- 2.Bxc5#
- 1...a3
- 2.Sb3#
- 1...d5
- 2.Qf4#
- 1...Qa6
- Tries
- 1.Rd1?
- threat
- 2.Sc2#
- 1...Sxd3
- 2.Qf4#
- 1...c2
- 2.Sxc2#
- 1...Rxf2!
- threat
- 1.Re1?
- threat
- 2.Re4#
- 1...Sxd3
- 2.Sc2#
- 1...Qa8
- 2.bxc3#
- 1...d5
- 2.Qf4#
- 1...c2!
- threat
- 1.Rxc3?
- threat
- 2.Sc2#
- 2.Bxc5#
- 1...Qxc3
- 2.bxc3#
- 1...Rxf2
- 2.Bxc5#
- 1...Qb4
- 2.Sc2#
- 1...Qa8
- 2.Sc2#
- 1...Sbc4
- 2.Sc2#
- 1...b4
- 2.Sc2#
- 1...c4
- 2.Sc2#
- 1...d6
- 2.Sc2#
- 1...Sxd3!
- threat
- 1.Qg6?
- threat
- 2.Qe4#
- 1...Kd5
- 2.Qd6#
- 1...Sxd3
- 2.Qxd3#
- 1...Sxg6
- 2.Bxc5#
- 1...d5
- 2.Sc2#
- 1...Qa8!
- threat
- 1.Qxf3?
- threat
- 2.Sc2#
- 2.Qe4#
- 1...Rxf2
- 2.Qe4#
- 1...Sxd3
- 2.Qxd3#
- 1...Sxf3
- 2.Bxc5#
- 1...Qa8
- 2.Sc2#
- 2.bxc3#
- 1...c2
- 2.Sxc2#
- 2.Qe4#
- 1...d5
- 2.Sc2#
- 2.Qe3#
- 2.Qf4#
- 1...gxf3!
- threat
- 1.Qf5?
- threat
- 2.Qe4#
- 2.Qxe5#
- 1...Sxd3
- 2.Qxd3#
- 1...Qa8
- 2.Qxe5#
- 1...Sec4
- 2.Sc2#
- 2.Bxc5#
- 2.Qe4#
- 2.Qf4#
- 2.Qxc5#
- 1...Sc6
- 2.Sc2#
- 2.Bxc5#
- 2.Qe4#
- 2.Qf4#
- 2.Qxc5#
- 1...Sg6
- 2.Sc2#
- 2.Bxc5#
- 2.Qe4#
- 2.Qxc5#
- 1...Sf7
- 2.Sc2#
- 2.Bxc5#
- 2.Qe4#
- 2.Qf4#
- 2.Qxc5#
- 1...Sbc4
- 2.Qe4#
- 1...c2
- 2.Qe4#
- 1...d5
- 2.Sc2#
- 2.Qf4#
- 2.Qxe5#
- 1...d6
- 2.Qe4#
- 1...Kd5!
- threat
- 1.Rd1?
- Keys
- 1.Sxc3!
- threat
- 2.Qf4#
- 1...Qxc3
- 2.bxc3#
- 1...Sxd3
- 2.Sc2#
- 1...Sxf7
- 2.Bxc5#
- 1...Qa8
- 2.Sxb5#
- 1...Sg6
- 2.Bxc5#
- 1...Sd5
- 2.Qxd5#
- threat
- 1.Sxc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- Q(g);N_GUARD::P(E),XP(b)
- Q(g);N_GUARD,P_PINB(J)::P(E),XP(b)
- S(j);::B(J),XP(i)
- S(j);XQ(I)::B(J),XP(i)
- P(b);XP(E)::B(J),XP(i)
- P(d);N_GUARD::S(A)
- P(l);SBLOCK::QAR2(I)
- Tries
- Try
- R(C);
- Threat
- S(A)
- Vars
- S(j);P_SPINS(j),XP(G)::QAR2(I)
- P(b);::S(A),XP(b)
- Refutation
- R(a);XP(F)
- Try
- R(C);
- Threat
- R1(C)
- Vars
- S(j);SBLOCK,XP(G)::S(A)
- Q(g);N_GUARD,P_PINB(J)::P(E),XP(b)
- P(l);SBLOCK::QAR2(I)
- Refutation
- P(b);
- Try
- R(C);XP(b)
- Threat
- DUALS(2)
- Vars
- Q(g);OGATE,XR(C)::P(E),XQ(g)
- R(a);XP(F)::B(J),XP(i)
- Q(g);::S(A)
- Q(g);P_PINB(J)::S(A)
- S(k);::S(A)
- P(h);::S(A)
- P(i);::S(A)
- P(l);::S(A)
- Refutation
- S(j);XP(G)
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- K(e);P-FLIGHT,P_SPINS(j)::QAR1(I)
- S(j);OGATE,XP(G)::QAR1(I),XS(j)
- S(j);XQ(I)::B(J),XP(i)
- P(l);SBLOCK::S(A)
- Refutation
- Q(g);P_PINB(J)
- Try
- Q(I);XP(c)
- Threat
- DUALS(2)
- Vars
- R(a);XP(F)::QAR1(I)
- S(j);OGATE,XP(G)::QAR1(I),XS(j)
- S(j);XQ(I)::B(J),XP(i)
- Refutation
- P(f);P_PINR(H),XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- S(j);OGATE,XP(G)::QAR1(I),XS(j)
- Q(g);P_PINB(J)::QAB1(I),XS(j)
- S(k);::QAR1(I)
- P(b);::QAR1(I)
- P(l);::QAR1(I)
- Refutation
- K(e);P-FLIGHT,P_SPINS(j)
- Try
- Actual
- S(D);XP(b)
- Threat
- QAR2(I)
- Vars
- Q(g);OGATE,XS(D)::P(E),XQ(g)
- S(j);SBLOCK,XP(G)::S(A)
- S(j);XQ(I)::B(J),XP(i)
- Q(g);N_GUARD,P_PINB(J)::S(D),XP(h)
- S(j);::B(J),XP(i)
- S(k);N_GUARD::QAR1(I),XS(k)
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).