MESON Chess Problem Database
Problem Display
PID: 63239 (1n2qr2/p2pp2b/nQ6/1P1kP2R/2N3B1/r4P1N/4P3/b1R3BK w - - 0 1)
Leites, Samuil Davidovich
2nd Prize, Schach, 1973
#2
12 + 11
| 3753 | FIDE Album (1971-1973) | 1978 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Se3#
- 1...Rc3
- 2.Qd4#
- 1...Re3
- 2.Sxe3#
- 1...Ra4
- 2.Se3#
- 1...Ra5
- 2.Se3#
- 1...Rf4
- 2.Sxf4#
- 1...Rf5
- 2.e4#
- 1...Rg8
- 2.Sf4#
- 1...Rh8
- 2.Sf4#
- 1...Bc3
- 2.Se3#
- 1...Bd4
- 2.Qxd4#
- 1...Bxe5
- 2.Rxe5#
- 2.Qd4#
- 1...Bd3
- 2.Se3#
- 1...Bf5
- 2.Sf4#
- 1...Bg8
- 2.e4#
- 1...Sb4
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...axb6
- 2.Sxb6#
- 1...e6
- 2.Qd6#
- 1...Ra2
- Tries
- 1.Bf5?
- threat
- 2.Sf4#
- 2.e4#
- 1...Qxh5
- 2.e4#
- 1...Rxf3
- 2.e4#
- 1...Rxf5
- 2.e4#
- 1...Bxe5
- 2.e4#
- 1...Bxf5
- 2.Sf4#
- 1...Rc3
- 2.Qd4#
- 1...Re3
- 2.Sf4#
- 1...Sc5
- 2.Sf4#
- 2.Qxc5#
- 1...Bc3!
- threat
- 1.Rd1+?
- 1...Rd3
- 2.Se3#
- 1...Bd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Bd3
- 2.Se3#
- 1...Kxc4!
- 1...Rd3
- 1.Rf5?
- threat
- 2.Sf4#
- 2.e4#
- 1...Rxf3
- 2.Bxf3#
- 1...Rxf5
- 2.e4#
- 1...Bxf5
- 2.Sf4#
- 1...axb6
- 2.Sf4#
- 1...Bc3
- 2.Se3#
- 1...Sc6
- 2.Sf4#
- 1...d6
- 2.Sf4#
- 1...Qh5
- 2.e4#
- 1...Re3
- 2.Sf4#
- 2.Sxe3#
- 1...Sc5
- 2.Sf4#
- 1...Rc3!
- threat
- 1.e6+?
- 1...Rf5
- 2.Sf4#
- 2.e4#
- 1...Be5
- 2.Rxe5#
- 2.Qd4#
- 1...Bf5
- 2.Sf4#
- 2.e4#
- 1...Qxh5!
- 1...Rf5
- 1.Bf5?
- Keys
- 1.Rc3!
- threat
- 2.Se3#
- 2.Qd4#
- 1...Qxh5
- 2.Qd4#
- 1...Rxc3
- 2.Qd4#
- 1...Rxf3
- 2.Qd4#
- 1...Bxc3
- 2.Se3#
- 1...axb6
- 2.Sxb6#
- 1...Rf4
- 2.Sxf4#
- 2.Se3#
- 1...Rf5
- 2.e4#
- 1...Bf5
- 2.Sf4#
- 1...Sc5
- 2.Qxc5#
- 1...Sc6
- 2.Se3#
- threat
- 1.Rc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 13
- Sets
- R(b);N_GUARD::S(G)
- R(b);S_CUTB(a)::QAR1(L)
- R(b);N_GUARD::S(G),XR(b)
- R(k);N_GUARD::S(F),XR(k)
- R(k);S_CUTB(h)::P(D)
- R(k);N_GUARD::S(F)
- B(a);S_CUTR(b)::S(G)
- B(a);N_GUARD::QAR1(L),XB(a)
- B(h);S_CUTR(b)::S(G)
- B(h);S_CUTR(k)::S(F)
- B(h);N_GUARD::P(D)
- S(d);N_GUARD::QAR1(L)
- S(d);N_GUARD::QAR1(L),XS(d)
- P(e);XQ(L)::S(G),XP(e)
- P(g);N_GUARD::QAR1(L)
- Tries
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- Q(j);P_PINS(F),XR(K)::P(D)
- R(b);XP(E)::P(D)
- R(k);XB(H)::P(D)
- B(a);XP(J)::P(D)
- B(h);XB(H)::S(F)
- R(b);S_CUTB(a)::QAR1(L)
- R(b);::S(F)
- Refutation
- B(a);
- Try
- R(A);CHECK
- Vars
- R(b);P_SPINR(b)::S(G)
- B(h);P_SPINB(h)::S(G)
- Refutation
- K(c);S_FLIGHT,XS(G)
- Try
- R(K);
- Threat
- DUALS(2)
- Vars
- R(b);OGATE,XP(E)::B(H),XR(b)
- R(k);XR(K)::P(D)
- B(h);XR(K)::S(F)
- P(e);XQ(L)::S(F)
- B(a);S_CUTR(b)::S(G)
- S(i);::S(F)
- P(f);::S(F)
- Q(j);P_PINS(F)::P(D)
- S(d);::S(F)
- Refutation
- R(b);
- Try
- P(J);CHECK
- Refutation
- Q(j);P_PINS(F),XR(K)
- Try
- Actual
- R(A);
- Threat
- DUALS(2)
- Vars
- Q(j);P_PINS(F),XR(K)::QAR1(L)
- R(b);XR(A)::QAR1(L)
- R(k);XP(E)::QAR1(L)
- B(a);XR(A)::S(G)
- P(e);XQ(L)::S(G),XP(e)
- R(k);S_CUTB(h)::P(D)
- B(h);S_CUTR(k)::S(F)
- S(d);N_GUARD::QAR1(L),XS(d)
- S(i);::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).