MESON Chess Problem Database
Problem Display
PID: 169350 (b2K1R1B/3N3p/1p4p1/2p3p1/2B1k1P1/q1Qn4/5PP1/1N1rr3 w - - 0 1)
Murashev, Pavel Aleksandrovich
1st HM., SuperProblem 172. TT, 2016
#2
10 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxc3
- 2.Sxc3#
- 1...Rc1
- 2.Sd2#
- 1...Rd2
- 2.Sxd2#
- 1...Sc1
- 2.Qe5#
- 2.f3#
- 1...Sb2
- 2.Qe5#
- 2.f3#
- 1...Sxf2
- 2.Qe5#
- 1...Sb4
- 2.Qe5#
- 2.f3#
- 1...Sf4
- 2.Qe5#
- 2.f3#
- 1...Se5
- 2.Qxe5#
- 1...Qxc3
- Tries
- 1.Bxd3+?
- 1...Rxd3
- 2.Qe5#
- 1...Kd5!
- 1...Rxd3
- 1.Be5?
- threat
- 2.Sf6#
- 1...Qxc3
- 2.Sxc3#
- 1...Sxe5
- 2.Qxe5#
- 1...Sc1
- 2.f3#
- 1...Sb2
- 2.f3#
- 1...Sb4
- 2.f3#
- 1...Sf4
- 2.f3#
- 1...Sxf2!
- threat
- 1.Rf4+?
- 1...Sxf4
- 2.Qe5#
- 2.f3#
- 1...gxf4
- 2.Sf6#
- 1...Kxf4!
- 1...Sxf4
- 1.Rf5?
- threat
- 2.Sf6#
- 1...Qxc3
- 2.Sxc3#
- 1...Sxf2
- 2.Qe5#
- 1...Sc1
- 2.Qe5#
- 2.f3#
- 1...Sb2
- 2.Qe5#
- 2.f3#
- 1...Sb4
- 2.Qe5#
- 2.f3#
- 1...Sf4
- 2.Re5#
- 2.Qe5#
- 2.f3#
- 1...Se5
- 2.Qxe5#
- 1...gxf5!
- threat
- 1.Re8+?
- 1...Se5
- 2.Qxe5#
- 1...Kf4!
- 1...Se5
- 1.Qxe1+?
- 1...Rxe1
- 2.Sd2#
- 1...Sxe1!
- 1...Rxe1
- 1.Qd2?
- threat
- 2.f3#
- 1...Rxd2
- 2.Sxd2#
- 1...Sxf2
- 2.Re8#
- 1...Rf1
- 2.Qe3#
- 2.Qe2#
- 1...Re3
- 2.Qxe3#
- 1...Sc1
- 2.Re8#
- 1...Sb2
- 2.Re8#
- 1...Sb4
- 2.Re8#
- 1...Se5
- 2.Sf6#
- 1...Sf4!
- threat
- 1.Qf6?
- threat
- 2.Qf3#
- 1...Sxf2
- 2.Re8#
- 2.Qe5#
- 2.Qe7#
- 2.Qe6#
- 1...Se5
- 2.Qxe5#
- 1...Sc1
- 2.Re8#
- 2.Qe5#
- 2.Qe7#
- 2.Qe6#
- 1...Sb2
- 2.Re8#
- 2.Qe5#
- 2.Qe7#
- 2.Qe6#
- 1...Sb4
- 2.Re8#
- 2.Qe5#
- 2.Qe7#
- 2.Qe6#
- 1...Sf4
- 2.Qe5#
- 1...Re3!
- threat
- 1.Qxa3?
- threat
- 2.Sc3#
- 2.Qxa8#
- 1...Rxb1
- 2.Qxd3#
- 2.Qxa8#
- 1...Sxf2
- 2.Qf3#
- 1...Rc1
- 2.Sd2#
- 2.Qxd3#
- 2.Qxa8#
- 1...Bd5
- 2.Sc3#
- 1...Bc6
- 2.Sc3#
- 1...Bb7
- 2.Sc3#
- 1...Sc1
- 2.Sc3#
- 2.Qf3#
- 2.f3#
- 1...Sb2
- 2.Sc3#
- 2.Qf3#
- 2.f3#
- 1...Sb4
- 2.Sc3#
- 2.Qf3#
- 2.f3#
- 1...Sf4
- 2.Sc3#
- 2.Qf3#
- 2.f3#
- 1...Se5!
- threat
- 1.Bxd3+?
- Keys
- 1.Rf3!
- threat
- 2.Sf6#
- 1...Qxc3
- 2.Sxc3#
- 1...Sxf2
- 2.Qe5#
- 1...Sc1
- 2.Qe5#
- 1...Sb2
- 2.Qe5#
- 1...Sb4
- 2.Qe5#
- 1...Sf4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- Q(c);XQ(D)::S(A),XQ(c)
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- S(d);N_GUARD,P_PINS(G),XP(B)::QAR1(D)
- S(d);N_GUARD,P_PINS(G)::QAR1(D),XS(d)
- Tries
- Try
- B(E);CHECK,XS(d)
- Vars
- R(a);P_PINS(G),SBLOCK,XB(E)::QAR1(D)
- Refutation
- K(e);S_FLIGHT
- Try
- B(J);
- Threat
- S(G)
- Vars
- Q(c);XQ(D)::S(A),XQ(c)
- S(d);OGATE,P_PINS(G),XB(J)::QAR1(D),XS(d)
- S(d);P_PINS(G)::P(B)
- Refutation
- S(d);P_PINS(G),XP(B)
- Try
- R(I);CHECK
- Vars
- P(g);SBLOCK,XR(I)::S(G)
- Refutation
- K(e);P-FLIGHT,XR(I)
- Try
- R(I);
- Threat
- S(G)
- Vars
- Q(c);XQ(D)::S(A),XQ(c)
- S(d);N_GUARD,P_PINS(G),XP(B)::QAR1(D)
- S(d);N_GUARD,P_PINS(G)::QAR1(D),XS(d)
- Refutation
- P(i);XR(I)
- Try
- R(I);CHECK
- Vars
- S(d);N_GUARD,P_PINS(G),P_SPINS(d)::QAR1(D),XS(d)
- Refutation
- K(e);P-FLIGHT
- Try
- Q(D);CHECK,XR(b)
- Vars
- R(a);XQ(D)::S(A)
- Refutation
- S(d);P_PINS(G),XQ(D)
- Try
- Q(D);
- Threat
- P(B)
- Vars
- R(a);XQ(D)::S(A),XR(a)
- S(d);N_GUARD,XP(B)::R(I)
- R(b);N_GUARD::QAR1(D),XR(b)
- S(d);N_GUARD::R(I)
- S(d);SBLOCK::S(G)
- Refutation
- S(d);
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- S(d);N_GUARD,P_PINS(G)::QAR1(D),XS(d)
- S(d);N_GUARD,P_PINS(G)::QAR1(D)
- Refutation
- R(b);
- Try
- Q(D);XQ(c)
- Threat
- DUALS(2)
- Vars
- S(d);OGATE,P_PINS(G),XP(B)::QAB1(D)
- B(k);::S(A)
- Refutation
- S(d);P_PINS(G)
- Try
- Actual
- R(I);
- Threat
- S(G)
- Vars
- Q(c);XQ(D)::S(A),XQ(c)
- S(d);N_GUARD,P_PINS(G),XP(B)::QAR1(D)
- S(d);N_GUARD,P_PINS(G)::QAR1(D)
- S(d);N_GUARD,P_PINS(G)::QAR1(D),XS(d)
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).