MESON Chess Problem Database
Problem Display
PID: 7023 (8/4K1B1/1p6/7Q/1Nk1NRp1/R7/P7/1r2q3 w - - 0 1)
Adabashev, Mark Ivanovich
Prize, Schackvarlden, 1935
#2
8 + 5
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Sxd2#
- 2.Sd6#
- 1...Qf2
- 2.Sd2#
- 2.Sxf2#
- 2.Sd6#
- 1...Qc3
- 2.Sd2#
- 2.Sxc3#
- 2.Sd6#
- 1...Qg3
- 2.Sd2#
- 2.Sxg3#
- 2.Sd6#
- 1...Qxb4+
- 2.Sd6#
- 1...Qh4+
- 2.Sf6#
- 1...Qc1
- 2.Sd2#
- 2.Sd6#
- 1...Qd1
- 2.Sd2#
- 2.Sd6#
- 1...Qf1
- 2.Sd2#
- 2.Sf2#
- 2.Sd6#
- 1...Qg1
- 2.Sd2#
- 2.Sf2#
- 2.Sd6#
- 1...Qh1
- 2.Sd2#
- 2.Sd6#
- 1...Qxe4+
- 2.Rxe4#
- 1...b5
- 2.Qc5#
- 1...Qd2
- Tries
- 1.Kd7?
- threat
- 2.Sd2#
- 2.Sd6#
- 1...Qd2+
- 2.Sxd2#
- 2.Sd6#
- 1...Qxe4
- 2.Rxe4#
- 1...Kxb4!
- threat
- 1.Kf7?
- threat
- 2.Sd2#
- 2.Sd6#
- 1...Qxe4
- 2.Rxe4#
- 1...Qd2
- 2.Sxd2#
- 2.Sd6#
- 1...Kxb4!
- threat
- 1.Kd8?
- threat
- 2.Sd2#
- 2.Sd6#
- 1...Qd2+
- 2.Sxd2#
- 2.Sd6#
- 1...Qh4+
- 2.Sf6#
- 1...Qxe4
- 2.Rxe4#
- 1...Kxb4!
- threat
- 1.Kf8?
- threat
- 2.Sd2#
- 2.Sd6#
- 1...Qxb4+
- 2.Sd6#
- 1...Qxe4
- 2.Rxe4#
- 1...Qd2
- 2.Sxd2#
- 2.Sd6#
- 1...Kxb4!
- threat
- 1.Rc3+?
- 1...Qxc3
- 2.Sd2#
- 2.Sxc3#
- 2.Sd6#
- 1...Kxb4!
- 1...Qxc3
- 1.Re3?
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sd6#
- 2.Sf6#
- 1...Qxb4+
- 2.Sd6#
- 1...Qh4+
- 2.Sf6#
- 1...Kxb4
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sd6#
- 2.Sf6#
- 1...Qd2
- 2.Sxd2#
- 2.Sd6#
- 1...Qf2
- 2.Sd2#
- 2.Sxf2#
- 2.Sd6#
- 1...Qc3
- 2.Sd2#
- 2.Sxc3#
- 2.Sd6#
- 1...Qg3
- 2.Sd2#
- 2.Sxg3#
- 2.Sd6#
- 1...Qd1
- 2.Sd2#
- 2.Sd6#
- 1...Qf1
- 2.Sd2#
- 2.Sf2#
- 2.Sd6#
- 1...Qh1
- 2.Sd2#
- 2.Sd6#
- 1...Rd1
- 2.Sd2#
- 2.Sd6#
- 1...g3
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sxg3#
- 2.Sd6#
- 2.Sf6#
- 1...Qxe3!
- threat
- 1.Qe5?
- threat
- 2.Sd2#
- 2.Sd6#
- 1...Qxb4+
- 2.Sd6#
- 1...Qh4+
- 2.Sg5#
- 2.Sf6#
- 1...Qxe4
- 2.Rxe4#
- 1...Qd2
- 2.Sxd2#
- 2.Sd6#
- 1...Kxb4!
- threat
- 1.Kd7?
- Keys
- 1.Ra5!
- threat
- 2.Qb5#
- 1...Qxb4+
- 2.Sc5#
- 1...Qh4+
- 2.Sg5#
- 1...Qxe4+
- 2.Rxe4#
- 1...Kxb4
- 2.Qb5#
- 1...Rxb4
- 2.Qd5#
- 1...bxa5
- 2.Qc5#
- 1...b5
- 2.Qxb5#
- 2.Qc5#
- threat
- 1.Ra5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(b);CHECK,N_PINS(D),SBLOCK,XS(C)::R(E)+S(D),DCHECK
- Q(b);CHECK,N_PINS(D)::R(E)+S(D)
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(D)::R(E),XQ(b)
- P(e);N_GUARD::QAR1(F)
- Tries
- Try
- K(G);N_SPINS(D),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(b);OGATE,P_SPINQ(b),XS(D)::R(E),XQ(b)
- Refutation
- K(c);P-FLIGHT,XS(C)
- Try
- K(G);N_SPINS(D),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(b);OGATE,P_SPINQ(b),XS(D)::R(E),XQ(b)
- Refutation
- K(c);P-FLIGHT,XS(C)
- Try
- K(G);N_SPINS(D),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD::R(E)+S(D)
- Q(b);OGATE,P_SPINQ(b),XS(D)::R(E),XQ(b)
- Refutation
- K(c);P-FLIGHT,XS(C)
- Try
- K(G);N_SPINS(D),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,SBLOCK,XS(C)::R(E)+S(D),DCHECK
- Q(b);OGATE,P_SPINQ(b),XS(D)::R(E),XQ(b)
- Refutation
- K(c);P-FLIGHT,XS(C)
- Try
- R(B);CHECK
- Refutation
- K(c);P-FLIGHT,XS(C)
- Try
- R(B);N_SPINS(D)
- Threat
- DUALS(6)
- Vars
- Q(b);CHECK,SBLOCK,XS(C)::R(E)+S(D),DCHECK
- Q(b);CHECK::R(E)+S(D)
- Refutation
- Q(b);P_PINS(D),XR(B)
- Try
- Q(F);N_SPINS(D)
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,SBLOCK,XS(C)::R(E)+S(D),DCHECK
- Q(b);OGATE,P_PINQ(F),P_SPINQ(b),XS(D)::R(E),XQ(b)
- Refutation
- K(c);P-FLIGHT,XS(C)
- Try
- Actual
- R(B);
- Threat
- QAB1(F)
- Vars
- Q(b);CHECK,N_PINS(D),SBLOCK,XS(C)::R(E)+S(D)
- Q(b);CHECK,N_PINS(D)::R(E)+S(D)
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(D)::R(E),XQ(b)
- K(c);P-FLIGHT,XS(C)::QAR1(F)
- R(a);SBLOCK,XS(C)::QAB1(F)
- P(e);N_GUARD,XR(B)::QAR1(F)
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).