MESON Chess Problem Database
Problem Display
PID: 134811 (b1q5/p2nnB2/R4N1b/BNk2r2/4Qp1r/3p3p/8/1R5K w - - 0 1)
Gafarov, Marsil
2nd HM., All Russian Ty., 1968
#2
8 + 12
| 23 | Die Schwalbe | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxa6
- 2.Sxd7#
- 1...Qb8
- 2.Sxd7#
- 1...Qf8
- 2.Sxd7#
- 1...Qg8
- 2.Sxd7#
- 1...Qh8
- 2.Sxd7#
- 1...Rd5
- 2.Qb4#
- 1...Bxe4+
- 2.Sxe4#
- 1...Sd5
- 2.Qd4#
- 1...Sc6
- 2.Qc4#
- 1...f3
- 2.Qxe7#
- 1...Qxa6
- Tries
- 1.Kh2?
- threat
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.Qxe7#
- 1...Qxa6
- 2.Sxd7#
- 2.Qc4#
- 1...Rxf6
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Bxe4
- 2.Sxe4#
- 1...Qc6
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Qc7
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Qb8
- 2.Sxd7#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Qd8
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Qe8
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Qf8
- 2.Sxd7#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Rd5
- 2.Qb4#
- 1...Re5
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Bf8
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Bd5
- 2.Qb4#
- 2.Qd4#
- 1...Se5
- 2.Qb4#
- 2.Qd4#
- 1...Sd5
- 2.Qd4#
- 1...Sc6
- 2.Qc4#
- 1...Sg6
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Sg8
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...f3
- 2.Qxe7#
- 1...Sb6!
- threat
- 1.Bc3?
- threat
- 2.Bd4#
- 1...Bxe4+
- 2.Sxe4#
- 1...Rd5
- 2.Qb4#
- 1...Sd5
- 2.Qd4#
- 1...Sc6
- 2.Qc4#
- 1...Bd5!
- threat
- 1.Bd5?
- threat
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.Qxe7#
- 1...Qxa6
- 2.Sxd7#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Rxd5
- 2.Qb4#
- 1...Rxf6
- 2.Qc4#
- 2.Qd4#
- 1...Sxf6
- 2.Qc4#
- 2.Qd4#
- 1...Sxd5
- 2.Qd4#
- 1...Qc6
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Qc7
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Qb8
- 2.Sxd7#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Qd8
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Qe8
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Qf8
- 2.Sxd7#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Re5
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Bf8
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Se5
- 2.Qb4#
- 2.Qd4#
- 1...Sb6
- 2.Qb4#
- 2.Qd4#
- 2.Qxe7#
- 1...Sc6
- 2.Qc4#
- 1...Sg6
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Sg8
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...f3
- 2.Qxe7#
- 1...Bxd5!
- threat
- 1.Kh2?
- Keys
- 1.Be1!
- threat
- 2.Bf2#
- 1...Bxe4+
- 2.Sxe4#
- 1...Rd5
- 2.Qb4#
- 1...Sd5
- 2.Qd4#
- 1...Sc6
- 2.Qc4#
- 1...f3
- 2.Qxe7#
- threat
- 1.Be1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(l);N_GUARD,XR(F)::S(G),XS(i)
- Q(l);N_GUARD::S(G),XS(i)
- R(f);N_PINQ(C)::QAB1(C)
- B(k);CHECK,XQ(C)::S(G),XB(k)
- S(j);N_PINQ(C)::QAB1(C)
- S(j);N_PINQ(C)::QAR1(C)
- P(c);N_PINQ(C)::QAB(C),XS(j)
- Tries
- Try
- K(B);N_SPINQ(C),P-FLIGHT
- Threat
- DUALS(4)
- Vars
- B(k);XQ(C)::S(G),XB(k)
- R(f);::QAB1(C)
- S(j);::QAB1(C)
- S(j);::QAR1(C)
- P(c);::QAB(C),XS(j)
- Refutation
- S(i);
- Try
- B(D);
- Threat
- B(D)
- Vars
- B(k);CHECK,XQ(C)::S(G),XB(k)
- R(f);N_PINQ(C)::QAB1(C)
- S(j);N_PINQ(C)::QAB1(C)
- S(j);N_PINQ(C)::QAR1(C)
- Refutation
- B(k);
- Try
- B(H);N_SPINQ(C)
- Threat
- DUALS(4)
- Vars
- R(f);XB(H)::QAB1(C)
- S(j);XB(H)::QAB1(C)
- S(j);::QAR1(C)
- P(c);::QAB(C),XS(j)
- Refutation
- B(k);P_PINQ(C),XB(H)
- Try
- Actual
- B(D);
- Threat
- B(D)
- Vars
- B(k);CHECK,XQ(C)::S(G),XB(k)
- R(f);N_PINQ(C)::QAB1(C)
- S(j);N_PINQ(C)::QAB1(C)
- S(j);N_PINQ(C)::QAR1(C)
- P(c);N_PINQ(C)::QAB(C),XS(j)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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