MESON Chess Problem Database
Problem Display
PID: 60747 (7K/3N1P2/bb6/r1p1Rp1P/4Nk1P/1qp2PpR/2B2BQ1/7n w - - 0 1)
Wirtanen, Erkki Aukusti
1st Prize, Schach-Echo, 1968
#2
12 + 10
| 3751 | FIDE Album (1968-1970) | 1977 |
SOLUTION
- SOUND
- Sets
- 1...gxf2
- 2.Qg5#
- 1...gxf2
- Tries
- 1.Sd2?
- threat
- 2.Be3#
- 2.Rxf5#
- 1...Qxc2
- 2.Be3#
- 1...Qxf7
- 2.Be3#
- 1...Sxf2
- 2.Qxg3#
- 1...cxd2
- 2.Rxf5#
- 1...gxf2
- 2.Qg5#
- 1...Qd5
- 2.Be3#
- 1...Qe6
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...c4!
- threat
- 1.Sxc3?
- threat
- 2.Be3#
- 2.Rxf5#
- 1...Qxc2
- 2.Sd5#
- 2.Be3#
- 1...Qxf7
- 2.Be3#
- 1...Sxf2
- 2.Qxg3#
- 1...gxf2
- 2.Qg5#
- 1...Qd5
- 2.Sxd5#
- 2.Be3#
- 1...Qe6
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...c4
- 2.Se2#
- 1...Qxc3!
- threat
- 1.Sxg3?
- threat
- 2.Be3#
- 2.Rxf5#
- 1...Qxc2
- 2.Be3#
- 1...Qxf7
- 2.Be3#
- 1...Sxg3
- 2.Be3#
- 2.Bxg3#
- 2.Qxg3#
- 1...Qd5
- 2.Be3#
- 1...Qe6
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...c4
- 2.Se2#
- 1...Sxf2!
- threat
- 1.Sg5?
- threat
- 2.Be3#
- 2.Rxf5#
- 1...Qxc2
- 2.Se6#
- 2.Be3#
- 1...Qxf7
- 2.Be3#
- 1...Sxf2
- 2.Qxg3#
- 1...Qd5
- 2.Be3#
- 1...Qe6
- 2.Sxe6#
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...c4
- 2.Se6#
- 1...gxf2!
- threat
- 1.Sd6?
- threat
- 2.Be3#
- 2.Rxf5#
- 1...Qxc2
- 2.Be3#
- 1...Qxf7
- 2.Be3#
- 1...Sxf2
- 2.Qxg3#
- 1...gxf2
- 2.Qg5#
- 1...Qd5
- 2.Be3#
- 1...Qe6
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...c4!
- threat
- 1.Sef6?
- threat
- 2.Be3#
- 2.Rxf5#
- 1...Qxc2
- 2.Sd5#
- 2.Be3#
- 1...Sxf2
- 2.Qxg3#
- 1...gxf2
- 2.Qg5#
- 1...Qd5
- 2.Sxd5#
- 2.Be3#
- 1...Qe6
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...c4!
- threat
- 1.Sd2?
- Keys
- 1.Sexc5!
- threat
- 2.Be3#
- 2.Rxf5#
- 1...Qxc2
- 2.Se6#
- 2.Be3#
- 1...Qxf7
- 2.Be3#
- 1...Rxc5
- 2.Be3#
- 1...Bxc5
- 2.Rxf5#
- 1...Sxf2
- 2.Qxg3#
- 1...gxf2
- 2.Qg5#
- 1...Qd5
- 2.Be3#
- 1...Qe6
- 2.Sxe6#
- 2.Be3#
- 1...Bd3
- 2.Sxd3#
- 2.Be3#
- threat
- 1.Sexc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- P(d);OGATE,XB(B)::QAB1(C)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(b);XB(A)::B(B)
- Q(b);XP(K)::B(B)
- S(a);N_GUARD,XB(B)::QAB1(C),XP(d)
- P(c);XS(F)::R1(H),XP(h)
- P(d);OGATE,XB(B)::QAB1(C)
- Q(b);::B(B)
- B(i);::B(B)
- Refutation
- P(g);
- Try
- S(F);XP(c)
- Threat
- DUALS(2)
- Vars
- Q(b);XP(K)::B(B)
- S(a);N_GUARD,XB(B)::QAB1(C),XP(d)
- P(d);OGATE,XB(B)::QAB1(C)
- Q(b);::B(B)
- B(i);::B(B)
- P(g);S_CUTB(i)::S(F)
- Refutation
- Q(b);P_PINR(H),XS(F)
- Try
- S(F);XP(d)
- Threat
- DUALS(2)
- Vars
- Q(b);XB(A)::B(B)
- Q(b);XP(K)::B(B)
- Q(b);::B(B)
- B(i);::B(B)
- P(g);S_CUTB(i)::S(F)
- Refutation
- S(a);XB(B)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(b);XP(K)::B(B)
- S(a);N_GUARD,XB(B)::QAB1(C),XP(d)
- Q(b);::B(B)
- B(i);::B(B)
- P(g);S_CUTQ(b)::S(F)
- Refutation
- P(d);XB(B)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(b);XB(A)::B(B)
- Q(b);XP(K)::B(B)
- S(a);N_GUARD,XB(B)::QAB1(C),XP(d)
- P(d);OGATE,XB(B)::QAB1(C)
- Q(b);::B(B)
- B(i);::B(B)
- Refutation
- P(g);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD,XB(B)::QAB1(C),XP(d)
- P(d);OGATE,XB(B)::QAB1(C)
- Q(b);::B(B)
- B(i);::B(B)
- Refutation
- P(g);
- Try
- Actual
- S(F);XP(g)
- Threat
- DUALS(2)
- Vars
- Q(b);XP(K)::B(B)
- R(f);XS(F)::B(B)
- B(j);XS(F)::R1(H),XP(h)
- S(a);N_GUARD,XB(B)::QAB1(C),XP(d)
- P(d);OGATE,XB(B)::QAB1(C)
- Q(b);::B(B)
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).