MESON Chess Problem Database
Problem Display
PID: 11286 (B2bR3/2qb4/2n1N3/pQ1P1pPN/K2Bk2r/pR5p/4rP1n/8 w - - 0 1)
Adabashev, Mark Ivanovich
Sovietska Shakhmatnaya Kompozitsiya, 1937
#2
11 + 12
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qg3
- 2.Sxg3#
- 1...Qb6
- 2.Sg3#
- 1...Qa7
- 2.Sg3#
- 1...Qb7
- 2.Sg3#
- 1...Qc8
- 2.Sg3#
- 1...Ra2
- 2.Re3#
- 1...Rb2
- 2.Re3#
- 1...Rc2
- 2.Re3#
- 1...Rd2
- 2.Re3#
- 1...Rxf2
- 2.Re3#
- 1...Re3
- 2.Rxe3#
- 1...Rf4
- 2.Sg3#
- 1...Bf6
- 2.Sxf6#
- 1...Sf1
- 2.f3#
- 1...Sg4
- 2.f3#
- 1...Sxd4
- 2.Sc5#
- 1...Se5
- 2.Sg3#
- 1...Se7
- 2.Sf6#
- 1...Qg3
- Tries
- 1.Sc5+?
- 1...Kxd4
- 2.Rd3#
- 1...Kxd5!
- 1...Kxd4
- 1.Bb2?
- threat
- 2.Qd3#
- 1...Rxb2
- 2.Re3#
- 1...Re3
- 2.Rxe3#
- 1...Sd4
- 2.Sc5#
- 1...Qg3
- 2.Sxg3#
- 1...Rd2
- 2.Re3#
- 1...Sb4
- 2.Sc5#
- 1...Se5
- 2.Sg3#
- 1...Sa7
- 2.Sc5#
- 1...Se7
- 2.Sf6#
- 1...Sb8
- 2.Sc5#
- 1...axb2!
- threat
- 1.Bxc6?
- threat
- 2.Qxe2#
- 2.Qd3#
- 1...Qxc6
- 2.Sg3#
- 1...Rxf2
- 2.Re3#
- 2.Qd3#
- 1...Bxe6
- 2.Qd3#
- 1...Bxg5
- 2.Qd3#
- 1...Re3
- 2.Rxe3#
- 1...f4
- 2.Qd3#
- 1...Qg3
- 2.Sxg3#
- 1...Qf4
- 2.Qd3#
- 1...Re1
- 2.Qd3#
- 1...Ra2
- 2.Re3#
- 2.Qd3#
- 1...Rb2
- 2.Re3#
- 2.Qd3#
- 1...Rc2
- 2.Re3#
- 2.Qd3#
- 1...Rd2
- 2.Re3#
- 1...Sf1
- 2.Qd3#
- 2.f3#
- 1...Sg4
- 2.Qd3#
- 2.f3#
- 1...Bxc6!
- threat
- 1.d6?
- threat
- 2.Sg3#
- 2.Qe5#
- 1...Rxh5
- 2.Qe5#
- 1...Bxe6
- 2.Qe5#
- 1...Re3
- 2.Rxe3#
- 1...Qb7
- 2.Sg3#
- 1...Rg4
- 2.Qe5#
- 1...Bf6
- 2.Sg3#
- 2.Sxf6#
- 1...Sf1
- 2.Qe5#
- 2.f3#
- 1...Sf3
- 2.Sg3#
- 1...Sg4
- 2.Sg3#
- 2.f3#
- 1...f4
- 2.Qe5#
- 1...Qxd6!
- threat
- 1.Sc5+?
- Keys
- 1.Ba1!
- threat
- 2.Qd3#
- 1...Rb2
- 2.Re3#
- 1...Re3
- 2.Rxe3#
- 1...Sd4
- 2.Sc5#
- 1...Qg3
- 2.Sxg3#
- 1...Rd2
- 2.Re3#
- 1...Sb4
- 2.Sc5#
- 1...Se5
- 2.Sg3#
- 1...Sa7
- 2.Sc5#
- 1...Se7
- 2.Sf6#
- 1...Sb8
- 2.Sc5#
- threat
- 1.Ba1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- Q(j);N_GUARD::S(H),XQ(j)
- Q(j);N_GUARD::S(H)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD,XP(A)::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- R(f);S_CUTQ(j)::S(H)
- B(l);N_GUARD::S(H),XB(l)
- S(b);N_GUARD::P(A)
- S(i);P_PINQ(E),SBLOCK,XB(D)::R(K)+S(I),DCHECK
- S(i);P_PINQ(E),S_CUTQ(j)::S(H)
- S(i);P_PINQ(E),S_CUTB(l)::S(H)
- Tries
- Try
- S(I);CHECK
- Vars
- K(e);P-FLIGHT,XB(D)::R1(B)
- Refutation
- K(e);P_PINB(D),P_SPINS(i),S_FLIGHT,XP(F)
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- R(a);N_GUARD,XB(D)::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- S(i);P_PINQ(E)::R(K)+S(I),DCHECK
- Q(j);N_GUARD::S(H),XQ(j)
- R(a);N_GUARD::R1(B)
- S(i);P_PINQ(E),S_CUTQ(j)::S(H)
- S(i);P_PINQ(E),S_CUTB(l)::S(H)
- Refutation
- P(c);XB(D)
- Try
- B(J);XS(i)
- Threat
- DUALS(2)
- Vars
- Q(j);N_GUARD,P_PINQ(E),XB(J)::S(H)
- B(k);P_SPINB(k),XS(I)::QAB1(E)
- B(l);XP(G)::QAB1(E)
- R(a);N_GUARD::R1(B),XR(a)
- P(h);::QAB1(E)
- Q(j);N_GUARD::S(H),XQ(j)
- Q(j);::QAB1(E)
- R(a);::QAB1(E)
- R(a);N_GUARD::R1(B)
- Refutation
- B(k);P_PINQ(E),XB(J)
- Try
- P(F);P_PINS(i)
- Threat
- DUALS(2)
- Vars
- R(f);XS(H)::QAR1(E)
- B(k);P_SPINB(k),XS(I)::QAR1(E)
- R(a);N_GUARD::R1(B),XR(a)
- Q(j);N_SPINS(i)::S(H)
- R(f);::QAR1(E)
- S(b);::S(H)
- P(h);::QAR1(E)
- Refutation
- Q(j);XP(F)
- Try
- Actual
- B(D);
- Threat
- QAB1(E)
- Vars
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- S(i);P_PINQ(E)::R(K)+S(I),DCHECK
- Q(j);N_GUARD::S(H),XQ(j)
- S(i);P_PINQ(E),S_CUTQ(j)::S(H)
- S(i);P_PINQ(E),S_CUTB(l)::S(H)
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).