MESON Chess Problem Database
Problem Display
PID: 142945 (rR5b/1npp4/Q1n5/R3p3/4pPN1/3pP3/B1PP1K2/7k w - - 0 1)
Tyrkko, Timo
2nd Prize, Banska Bystrica (BABY), 1964
#2
10 + 10
| 117 | Suomen Shakki | 1981 |
| 422 | Suomen Tehtavaniekat | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Rxa6
- 2.Rxh8#
- 1...Ra7
- 2.Rxh8#
- 1...Sb4
- 2.Qh6#
- 1...Sd4
- 2.Qh6#
- 1...Scxa5
- 2.Qh6#
- 1...Sa7
- 2.Qh6#
- 1...Se7
- 2.Qh6#
- 1...Sxb8
- 2.Qh6#
- 1...Scd8
- 2.Qh6#
- 1...Sbxa5
- 2.Rb1#
- 1...Sc5
- 2.Rb1#
- 1...Sd6
- 2.Rb1#
- 1...Sbd8
- 2.Rb1#
- 1...dxc2
- 2.Qf1#
- 1...exf4
- 2.Rh5#
- 1...Rxa6
- Tries
- 1.Bb3?
- threat
- 2.Ra1#
- 1...Rxa6
- 2.Rxh8#
- 1...Scxa5
- 2.Qh6#
- 1...dxc2
- 2.Qf1#
- 1...exf4
- 2.Rh5#
- 1...Sbxa5!
- threat
- 1.Bc4?
- threat
- 2.Ra1#
- 1...Rxa6
- 2.Rxh8#
- 1...Scxa5
- 2.Qh6#
- 1...Sbxa5
- 2.Rb1#
- 1...exf4
- 2.Rh5#
- 1...dxc2!
- threat
- 1.Bd5?
- threat
- 2.Bxe4#
- 2.Ra1#
- 1...Rxa6
- 2.Bxe4#
- 2.Rxh8#
- 1...Scxa5
- 2.Bxe4#
- 2.Qh6#
- 1...Sbxa5
- 2.Bxe4#
- 2.Rb1#
- 1...dxc2
- 2.Bxe4#
- 2.Qf1#
- 1...Sd4
- 2.Ra1#
- 2.Qh6#
- 1...Sc5
- 2.Ra1#
- 2.Rb1#
- 1...Sd6
- 2.Ra1#
- 2.Rb1#
- 1...exf4!
- threat
- 1.Be6?
- threat
- 2.Ra1#
- 1...Rxa6
- 2.Rxh8#
- 1...Sbxa5
- 2.Rb1#
- 1...dxc2
- 2.Qf1#
- 1...exf4
- 2.Rh5#
- 1...Scxa5!
- threat
- 1.Bg8?
- threat
- 2.Ra1#
- 1...Scxa5
- 2.Qh6#
- 1...Sbxa5
- 2.Rb1#
- 1...dxc2
- 2.Qf1#
- 1...exf4
- 2.Rh5#
- 1...Rxa6!
- threat
- 1.Rb5?
- threat
- 2.Rb1#
- 1...Sb4
- 2.Qh6#
- 1...dxc2!
- threat
- 1.Rxb7?
- threat
- 2.Rb1#
- 1...dxc2
- 2.Qf1#
- 1...Sb4
- 2.Qh6#
- 1...Rb8!
- threat
- 1.Qxd3?
- threat
- 2.Qf1#
- 2.Qxe4#
- 1...exf4
- 2.Rh5#
- 2.Qf1#
- 1...Sd4
- 2.Qf1#
- 1...Sc5
- 2.Rb1#
- 2.Qf1#
- 1...Sd6
- 2.Rb1#
- 2.Qf1#
- 1...d5
- 2.Qf1#
- 1...exd3!
- threat
- 1.Qb5?
- threat
- 2.Qb1#
- 1...dxc2
- 2.Qf1#
- 1...Sb4!
- threat
- 1.Qxc6?
- threat
- 2.Qxe4#
- 2.Qh6#
- 1...exf4
- 2.Rh5#
- 2.Qh6#
- 1...Bf6
- 2.Qxe4#
- 1...Ra6
- 2.Rxh8#
- 2.Qxe4#
- 1...Bg7
- 2.Qxe4#
- 1...Sc5
- 2.Rb1#
- 2.Qh6#
- 1...Sd6
- 2.Rb1#
- 1...d5
- 2.Qh6#
- 1...d6
- 2.Qxe4#
- 1...dxc6!
- threat
- 1.Bb3?
- Keys
- 1.Bf7!
- threat
- 2.Ra1#
- 1...Rxa6
- 2.Rxh8#
- 1...Scxa5
- 2.Qh6#
- 1...Sbxa5
- 2.Rb1#
- 1...dxc2
- 2.Qf1#
- 1...exf4
- 2.Rh5#
- threat
- 1.Bf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- R(i);N_GUARD,XQ(I)::R(J),XB(j)
- R(i);N_GUARD::R(J),XB(j)
- S(e);OGATE::QAR(I)
- S(e);OGATE,XR(H)::QAR(I)
- S(e);OGATE,XR(J)::QAR(I)
- S(f);OGATE,XR(H)::R(J)
- S(f);OGATE::R(J)
- P(b);OGATE,XP(B)::QAR2(I)
- P(d);OGATE,XP(F)::R(H)
- Tries
- Try
- B(A);
- Threat
- R(H)
- Vars
- R(i);N_GUARD,XQ(I)::R(J),XB(j)
- S(e);OGATE,XR(H)::QAR(I)
- P(b);OGATE,XP(B)::QAR2(I)
- P(d);OGATE,XP(F)::R(H)
- Refutation
- S(f);XR(H)
- Try
- B(A);
- Threat
- R(H)
- Vars
- R(i);N_GUARD,XQ(I)::R(J),XB(j)
- S(e);OGATE,XR(H)::QAR(I)
- S(f);OGATE,XR(H)::R(J)
- P(d);OGATE,XP(F)::R(H)
- Refutation
- P(b);XP(B)
- Try
- B(A);P_PINP(c)
- Threat
- DUALS(2)
- Refutation
- P(d);XP(F)
- Try
- B(A);
- Threat
- R(H)
- Vars
- R(i);N_GUARD,XQ(I)::R(J),XB(j)
- S(f);OGATE,XR(H)::R(J)
- P(b);OGATE,XP(B)::QAR2(I)
- P(d);OGATE,XP(F)::R(H)
- Refutation
- S(e);XR(H)
- Try
- B(A);
- Threat
- R(H)
- Vars
- S(e);OGATE,XR(H)::QAR(I)
- S(f);OGATE,XR(H)::R(J)
- P(b);OGATE,XP(B)::QAR2(I)
- P(d);OGATE,XP(F)::R(H)
- Refutation
- R(i);XQ(I)
- Try
- R(H);
- Threat
- R(H)
- Vars
- S(e);OGATE::QAR(I)
- Refutation
- P(b);XP(B)
- Try
- R(J);XS(f)
- Threat
- R(J)
- Vars
- P(b);OGATE,XP(B)::QAR2(I)
- S(e);OGATE::QAR(I)
- Refutation
- R(i);
- Try
- Q(I);XP(b)
- Threat
- DUALS(2)
- Vars
- S(e);::QAR2(I)
- P(h);::QAR2(I)
- Refutation
- P(c);XQ(I)
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- P(b);OGATE,XP(B)::QAR2(I)
- Refutation
- S(e);
- Try
- Q(I);P_PINP(c),XS(e)
- Threat
- DUALS(2)
- Vars
- B(j);::QAB(I),XP(c)
- S(f);OGATE::R(J)
- P(h);N_SPINP(c)::QAR(I)
- P(h);::QAB(I),XP(c)
- Refutation
- P(h);N_SPINP(c),XQ(I)
- Try
- Actual
- B(A);
- Threat
- R(H)
- Vars
- R(i);N_GUARD,XQ(I)::R(J),XB(j)
- S(e);OGATE,XR(H)::QAR(I)
- S(f);OGATE,XR(H)::R(J)
- P(b);OGATE,XP(B)::QAR2(I)
- P(d);OGATE,XP(F)::R(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).