MESON Chess Problem Database
Problem Display
PID: 118217 (2r3B1/4nQ2/6p1/Rb2P1PN/1p1PkN1p/1Pp5/3R1K2/B7 w - - 0 1)
Piatesi, Antonio
Canadian Chess Chat, 1980
#2
12 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sd5
- 2.Qxg6#
- 1...Sf5
- 2.Qd5#
- 1...Sc6
- 2.Qxg6#
- 1...Sxg8
- 2.Qxg6#
- 1...h3
- 2.Sg3#
- 1...Sd5
- Tries
- 1.Se2?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Rxg8
- 2.Qf3#
- 1...Bxe2
- 2.Qf4#
- 1...Sxg8
- 2.Qf3#
- 1...cxd2
- 2.Qf3#
- 1...Sd5
- 2.Qxg6#
- 2.Qf3#
- 1...Sf5
- 2.Sf6#
- 2.Qd5#
- 1...Rf8!
- threat
- 1.Sg2?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Rxg8
- 2.Qf3#
- 1...Sxg8
- 2.Qf3#
- 1...cxd2
- 2.Qf3#
- 1...Bd3
- 2.Qf4#
- 1...Be2
- 2.Qf4#
- 1...Sd5
- 2.Qxg6#
- 2.Qf3#
- 1...Sf5
- 2.Sf6#
- 2.Qd5#
- 1...Rf8!
- threat
- 1.Sh3?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Rxg8
- 2.Qf3#
- 1...Sxg8
- 2.Qf3#
- 1...cxd2
- 2.Qf3#
- 1...Bd3
- 2.Qf4#
- 1...Be2
- 2.Qf4#
- 1...Sd5
- 2.Qxg6#
- 2.Qf3#
- 1...Sf5
- 2.Sf6#
- 2.Qd5#
- 1...Rf8!
- threat
- 1.Sd5?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Rxg8
- 2.Qf3#
- 1...Sxd5
- 2.Qxg6#
- 2.Qf3#
- 1...Sxg8
- 2.Qf3#
- 1...cxd2
- 2.Qf3#
- 1...Bd3
- 2.Qf4#
- 1...Be2
- 2.Qf4#
- 1...Sf5
- 2.Sdf6#
- 2.Shf6#
- 1...Rf8!
- threat
- 1.Sxg6?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Rxg8
- 2.Qf3#
- 1...Sxg6
- 2.Qxg6#
- 2.Qf3#
- 1...Sxg8
- 2.Qf3#
- 1...cxd2
- 2.Qf3#
- 1...Bd3
- 2.Qf4#
- 1...Be2
- 2.Qf4#
- 1...Sd5
- 2.Qf3#
- 1...Sf5
- 2.Sf6#
- 2.Qd5#
- 1...Rf8!
- threat
- 1.Qxg6+?
- 1...Sf5
- 2.Bd5#
- 1...Sxg6!
- 1...Sf5
- 1.Se2?
- Keys
- 1.Se6!
- threat
- 2.Qf3#
- 1...Kd5
- 2.Qf3#
- 1...Rf8
- 2.Sc5#
- 1...Be2
- 2.Qf4#
- 1...Sf5
- 2.Sf6#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- S(g);N_GUARD::QAB(K),XP(f)
- S(g);N_GUARD,SBLOCK::QAB1(K)
- S(g);N_GUARD,XB(L)::QAB(K),XP(f)
- P(d);N_GUARD::S(J)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(h);XB(L)::QAB1(K)
- B(e);XS(F)::QAR1(K)
- S(g);XB(L)::QAB1(K)
- P(a);XR(B)::QAB1(K)
- Refutation
- R(h);P_PINQ(K)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(h);XB(L)::QAB1(K)
- S(g);XB(L)::QAB1(K)
- P(a);XR(B)::QAB1(K)
- B(e);::QAR1(K)
- Refutation
- R(h);P_PINQ(K)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(h);XB(L)::QAB1(K)
- S(g);XB(L)::QAB1(K)
- P(a);XR(B)::QAB1(K)
- B(e);::QAR1(K)
- Refutation
- R(h);P_PINQ(K)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(h);XB(L)::QAB1(K)
- S(g);XB(L)::QAB1(K)
- P(a);XR(B)::QAB1(K)
- B(e);::QAR1(K)
- Refutation
- R(h);P_PINQ(K)
- Try
- S(F);XP(f)
- Threat
- DUALS(2)
- Vars
- R(h);XB(L)::QAB1(K)
- S(g);XB(L)::QAB1(K)
- P(a);XR(B)::QAB1(K)
- B(e);::QAR1(K)
- S(g);::QAB1(K)
- Refutation
- R(h);P_PINQ(K)
- Try
- Q(K);CHECK,XP(f)
- Vars
- S(g);P_SPINS(g)::B(L)
- Refutation
- S(g);XQ(K)
- Try
- Actual
- S(F);
- Threat
- QAB1(K)
- Vars
- K(c);P_SPINB(e),S_FLIGHT::QAB(K)
- R(h);N_GUARD,P_PINQ(K)::S(F)
- B(e);::QAR1(K)
- S(g);SBLOCK::S(J)
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).