MESON Chess Problem Database
Problem Display
PID: 70186 (6K1/1P1Q1R1p/4N3/4k1n1/4npp1/1r4P1/bqN5/B1b1R3 w - - 0 1)
Leites, Samuil Davidovich
Loshinski, Lev Ilich
Pimenov, Sergey Ivanovich
Umnov, Evgeny Ivanovich
Shakhmatny Listok, 1930
#2
9 + 10
| 5314 | Grossmeister Shakhmatnoi Kompozitsii | 1980 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Bxd4#
- 1...Ra3
- 2.b8Q#
- 2.b8B#
- 1...Re3
- 2.gxf4#
- 1...Rf3
- 2.b8Q#
- 2.b8B#
- 1...Rxg3
- 2.b8Q#
- 2.b8B#
- 1...Qd4
- Tries
- 1.Scd4?
- threat
- 2.Sc6#
- 2.Rf5#
- 1...Qxd4
- 2.Bxd4#
- 1...Rc3
- 2.Rf5#
- 1...Rb6
- 2.Rf5#
- 1...Sxf7!
- threat
- 1.Sxf4?
- threat
- 2.Rf5#
- 2.Qd5#
- 2.Qc7#
- 1...Rxg3
- 2.Qc7#
- 2.b8Q#
- 2.b8B#
- 1...Rxb7
- 2.Sd3#
- 1...Bxf4
- 2.Rf5#
- 2.gxf4#
- 1...Sxf7
- 2.Qe6#
- 1...Ra3
- 2.Qc7#
- 2.b8Q#
- 2.b8B#
- 1...Rc3
- 2.Qd4#
- 1...Rd3
- 2.Sxd3#
- 1...Rf3
- 2.Qc7#
- 2.b8Q#
- 2.b8B#
- 1...Rb4
- 2.Sd3#
- 2.Qc7#
- 1...Rb5
- 2.Sd3#
- 2.Qc7#
- 1...Rb6
- 2.Sd3#
- 1...Be3
- 2.Rf5#
- 2.Qd5#
- 1...Se6
- 2.Qxe6#
- 2.Qd5#
- 1...Re3!
- threat
- 1.Sxg5?
- threat
- 2.Rxe4#
- 2.Rf5#
- 2.Qe6#
- 1...Rxg3
- 2.Rxe4#
- 2.b8Q#
- 2.b8B#
- 1...Rxb7
- 2.Rxe4#
- 1...Ra3
- 2.Rxe4#
- 2.b8Q#
- 2.b8B#
- 1...Rc3
- 2.Rxe4#
- 2.Qd4#
- 1...Rd3
- 2.Rxe4#
- 1...Re3
- 2.gxf4#
- 1...Rf3
- 2.Rxe4#
- 2.b8Q#
- 2.b8B#
- 1...Rb5
- 2.Rxe4#
- 1...Rb6
- 2.Rxe4#
- 1...Be3
- 2.Rf5#
- 2.Qe6#
- 1...Rb4!
- threat
- 1.Sd8?
- threat
- 2.Sc6#
- 2.Rf5#
- 1...Rxg3
- 2.Sc6#
- 2.b8Q#
- 2.b8B#
- 1...Rxb7
- 2.Sc6#
- 1...Sxf7
- 2.Qe6#
- 1...Ra3
- 2.Sc6#
- 2.b8Q#
- 2.b8B#
- 1...Rc3
- 2.Qd4#
- 1...Rd3
- 2.Sc6#
- 1...Re3
- 2.Sc6#
- 2.gxf4#
- 1...Rf3
- 2.Sc6#
- 2.b8Q#
- 2.b8B#
- 1...Rb4
- 2.Sc6#
- 1...Rb5
- 2.Sc6#
- 1...Se6
- 2.Sc6#
- 2.Qxe6#
- 1...Rb6!
- threat
- 1.Bxb2+?
- 1...Rc3
- 2.Bxc3#
- 2.b8Q#
- 2.b8B#
- 1...Bxb2
- 2.gxf4#
- 1...Rxb2!
- 1...Rc3
- 1.Scd4?
- Keys
- 1.Sc5!
- threat
- 2.Rf5#
- 1...Rxg3
- 2.b8Q#
- 2.b8B#
- 1...Rxb7
- 2.Sd3#
- 1...Sxf7
- 2.Qe6#
- 1...Ra3
- 2.b8Q#
- 2.b8B#
- 1...Rc3
- 2.Qd4#
- 1...Rd3
- 2.Sxd3#
- 1...Re3
- 2.gxf4#
- 1...Rf3
- 2.b8Q#
- 2.b8B#
- 1...Rb4
- 2.Sd3#
- 1...Rb5
- 2.Sd3#
- 1...Rb6
- 2.Sd3#
- 1...Se6
- 2.Rxe4#
- 2.Qxe6#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- Q(c);OGATE::B(A),XQ(c)
- R(d);N_GUARD::P=Q
- R(d);N_SPINS(e),S_CUTB(a)::P(D),XP(f)
- R(d);N_GUARD,XP(D)::P=Q
- Tries
- Try
- S(C);N_PINQ(c)
- Threat
- DUALS(2)
- Vars
- Q(c);OGATE,P_SPINQ(c),XS(C)::B(A),XQ(c)
- R(d);::R1(H)
- Refutation
- S(i);XR(H)
- Try
- S(E);XP(f)
- Threat
- DUALS(3)
- Vars
- R(d);N_GUARD,P_PINR(H),XP(F)::S(E)
- S(i);N_GUARD,XR(H)::QAR1(G)
- R(d);N_SPINQ(c),P_PINR(H),S_CUTQ(c)::QAB1(G)
- R(d);N_GUARD,P_PINR(H)::S(E),XR(d)
- R(d);N_GUARD,P_PINR(H)::S(E)
- Refutation
- R(d);N_SPINS(e),P_PINR(H)
- Try
- S(E);XS(i)
- Threat
- DUALS(3)
- Vars
- R(d);P_PINR(H),XP(F)::R1(B),XS(e)
- R(d);P_PINR(H)::R1(B),XS(e)
- R(d);N_SPINS(e),P_PINR(H),S_CUTB(a)::P(D),XP(f)
- Refutation
- R(d);P_PINR(H)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(d);P_PINR(H),XP(F)::S(E)
- S(i);N_GUARD,XR(H)::QAR1(G)
- R(d);N_SPINQ(c),P_PINR(H),S_CUTQ(c)::QAB1(G)
- R(d);P_PINR(H)::S(E)
- Refutation
- R(d);P_PINR(H)
- Try
- B(A);CHECK,XQ(c)
- Vars
- B(a);XB(A)::P(D),XP(f)
- Refutation
- R(d);XB(A)
- Try
- Actual
- S(E);
- Threat
- R1(H)
- Vars
- R(d);N_GUARD,P_PINR(H),XP(D)::P=Q
- R(d);N_GUARD,P_PINR(H),XP(F)::S(E)
- S(i);N_GUARD,XR(H)::QAR1(G)
- R(d);N_GUARD,P_PINR(H)::P=Q
- R(d);N_SPINQ(c),P_PINR(H),S_CUTQ(c)::QAB1(G)
- R(d);N_GUARD,P_PINR(H)::S(E),XR(d)
- R(d);N_SPINS(e),P_PINR(H),S_CUTB(a)::P(D),XP(f)
- R(d);N_GUARD,P_PINR(H)::S(E)
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).