MESON Chess Problem Database
Problem Display
PID: 273039 (1B6/P2p1N2/1pR4p/4pp2/4k3/2P1np2/3Q1P2/1K6 w - - 0 1)
Murashev, Pavel Aleksandrovich
Shakhmatnaya kompozitsiya, 2021
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Kf4
- 2.Rc4#
- 2.Qd4#
- 1...Sd1
- 2.Sd6#
- 2.Rc4#
- 1...Sf1
- 2.Sd6#
- 2.Rc4#
- 1...Sc2
- 2.Sd6#
- 1...Sg2
- 2.Sd6#
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sg4
- 2.Sd6#
- 2.Rc4#
- 1...Sd5
- 2.Sd6#
- 2.Rc4#
- 1...f4
- 2.Sd6#
- 1...d5
- 2.Qxe3#
- 1...Kf4
- Tries
- 1.Sxe5?
- threat
- 2.Qd4#
- 1...Kf4
- 2.Qxe3#
- 1...f4
- 2.Qd3#
- 1...Sc2!
- threat
- 1.Rc5?
- threat
- 2.Qxe3#
- 1...Kf4
- 2.Rc4#
- 2.Qd4#
- 1...Sd1
- 2.Sd6#
- 2.Rc4#
- 2.Rxe5#
- 1...Sf1
- 2.Sd6#
- 2.Rc4#
- 2.Rxe5#
- 1...Sc2
- 2.Sd6#
- 2.Rxe5#
- 1...Sg2
- 2.Sd6#
- 2.Rc4#
- 2.Rxe5#
- 1...Sc4
- 2.Rxc4#
- 1...Sg4
- 2.Sd6#
- 2.Rc4#
- 1...Sd5
- 2.Sd6#
- 2.Rc4#
- 1...f4
- 2.Sd6#
- 2.Rxe5#
- 1...bxc5!
- threat
- 1.Rd6?
- threat
- 2.Qxe3#
- 1...Kf4
- 2.Rd4#
- 1...Sd1
- 2.a8Q#
- 2.a8B#
- 1...Sf1
- 2.a8Q#
- 2.a8B#
- 1...Sc2
- 2.a8Q#
- 2.a8B#
- 1...Sg2
- 2.a8Q#
- 2.a8B#
- 1...Sc4
- 2.a8Q#
- 2.a8B#
- 1...Sg4
- 2.a8Q#
- 2.a8B#
- 1...f4
- 2.Qd3#
- 1...Sd5!
- threat
- 1.Re6?
- threat
- 2.Qd4#
- 1...Kf4
- 2.Qd4#
- 1...Sc2
- 2.Sd6#
- 2.Rxe5#
- 1...f4
- 2.Sd6#
- 2.Rxe5#
- 1...dxe6!
- threat
- 1.Qd3+?
- 1...Kf4
- 2.Qd4#
- 1...Kxd3!
- 1...Kf4
- 1.fxe3?
- threat
- 2.Sd6#
- 2.Rc4#
- 1...dxc6
- 2.Sd6#
- 1...f4
- 2.Sd6#
- 1...b5
- 2.Sd6#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 2.Rc4#
- 1...f2!
- threat
- 1.a8Q?
- threat
- 2.Rc4#
- 1...Kf4
- 2.Rc4#
- 2.Qd4#
- 2.Qa4#
- 1...Sc4
- 2.Rxc4#
- 2.Rd6#
- 1...f4
- 2.Sd6#
- 1...d5
- 2.Qxe3#
- 1...dxc6!
- threat
- 1.a8B?
- threat
- 2.Rc4#
- 1...Kf4
- 2.Rc4#
- 2.Qd4#
- 1...Sc4
- 2.Rxc4#
- 2.Rd6#
- 1...f4
- 2.Sd6#
- 1...d5
- 2.Qxe3#
- 1...dxc6!
- threat
- 1.Sxe5?
- Keys
- 1.c4!
- threat
- 2.Qxe3#
- 1...Kf4
- 2.Qd4#
- 1...Sxc4
- 2.Rxc4#
- 1...Sd1
- 2.Sd6#
- 1...Sf1
- 2.Sd6#
- 1...Sc2
- 2.Sd6#
- 1...Sg2
- 2.Sd6#
- 1...Sg4
- 2.Sd6#
- 1...Sd5
- 2.Sd6#
- 1...f4
- 2.Sd6#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- S(a);::S(G)
- S(a);N_GUARD::R(E),XS(a)
- P(e);SBLOCK::S(G)
- P(h);SBLOCK::QAR1(B),XS(a)
- Tries
- Try
- S(G);XP(d)
- Threat
- QAR1(B)
- Vars
- K(c);N_GUARD,P-FLIGHT,P_SPINS(a)::QAB1(B),XS(a)
- P(e);SBLOCK::QAB1(B)
- Refutation
- S(a);
- Try
- R(E);
- Threat
- QAR1(B),XS(a)
- Vars
- S(a);N_GUARD::R(E),XS(a)
- Refutation
- P(f);XR(E)
- Try
- R(E);
- Threat
- QAR1(B),XS(a)
- Vars
- K(c);P-FLIGHT,P_SPINS(a),S_CUTP(d)::R(E)
- S(a);N_GUARD::P=Q
- P(e);SBLOCK::QAB1(B)
- Refutation
- S(a);
- Try
- R(E);P_PINP(d)
- Threat
- QAR1(B)
- Vars
- K(c);P-FLIGHT,P_SPINS(a)::QAR2(B)
- Refutation
- P(h);N_SPINP(d),XR(E)
- Try
- Q(B);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINP(d)::QAR2(B)
- Refutation
- K(c);S_FLIGHT,XQ(B)
- Try
- P(C);XS(a)
- Threat
- DUALS(2)
- Vars
- P(h);XR(E)::S(G)
- P(e);::S(G)
- P(f);::S(G)
- P(h);::S(G)
- Refutation
- P(b);
- Try
- P(F);
- Threat
- QAB(F)+R(E),DCHECK
- Vars
- P(e);SBLOCK::S(G)
- P(h);SBLOCK::QAR1(B),XS(a)
- Refutation
- P(h);P_SPINP(h),XR(E)
- Try
- P(F);
- Threat
- B(F)+R(E),DCHECK
- Vars
- P(e);SBLOCK::S(G)
- P(h);SBLOCK::QAR1(B),XS(a)
- Refutation
- P(h);P_SPINP(h),XR(E)
- Try
- Actual
- P(D);
- Threat
- QAR1(B),XS(a)
- Vars
- K(c);N_GUARD,P-FLIGHT,P_SPINP(d),P_SPINS(a)::QAR2(B)
- S(a);OGATE,XP(D)::R(E),XS(a)
- S(a);::S(G)
- P(e);SBLOCK::S(G)
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).