MESON Chess Problem Database
Problem Display
PID: 237819 (1N6/4Q3/1R1ppp1r/4k3/qpPrBRbN/2P2PP1/7p/6bK w - - 0 1)
Pituk, Alexander
Arbejder-Skak, 1963
#2
11 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Sc6#
- 2.Sd7#
- 1...Qc2
- 2.Sc6#
- 2.Sd7#
- 1...Qb3
- 2.Sc6#
- 2.Sd7#
- 1...Qc6
- 2.Sxc6#
- 1...Qd7
- 2.Sxd7#
- 1...Qa1
- 2.Sc6#
- 2.Sd7#
- 1...Qa2
- 2.Sc6#
- 2.Sd7#
- 1...Qa3
- 2.Sc6#
- 2.Sd7#
- 1...Qa5
- 2.Sc6#
- 2.Sd7#
- 1...Qa6
- 2.Sc6#
- 2.Sd7#
- 1...Qa7
- 2.Sc6#
- 1...Qa8
- 2.Sd7#
- 1...Rxc4
- 2.Qxd6#
- 1...Rxe4
- 2.Rxe4#
- 2.Qxd6#
- 1...Rxh4
- 2.Qxf6#
- 1...Rh5
- 2.Sg6#
- 2.Qxf6#
- 1...Rg6
- 2.Sxg6#
- 1...Rh7
- 2.Sg6#
- 2.Qxf6#
- 1...Rh8
- 2.Sg6#
- 2.Qxf6#
- 1...Bxf3+
- 2.Sxf3#
- 1...Bf5
- 2.Rxf5#
- 1...Bh5
- 2.Rf5#
- 1...d5
- 2.Qd6#
- 2.Qc7#
- 1...Qd1
- Tries
- 1.Bd5?
- threat
- 2.Qxd6#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rxd5
- 2.Re4#
- 1...Qc6
- 2.Sxc6#
- 1...Qd7
- 2.Sxd7#
- 1...f5!
- threat
- 1.Bf5?
- threat
- 2.Qxe6#
- 1...Bxf3+
- 2.Sxf3#
- 1...Bxf5
- 2.Rxf5#
- 1...Qd7
- 2.Sxd7#
- 1...Qe8!
- threat
- 1.Bc6?
- threat
- 2.Sd7#
- 1...Bxf3+
- 2.Sxf3#
- 1...Qxc6
- 2.Sxc6#
- 1...Qa7!
- threat
- 1.Rb5+?
- 1...Rd5
- 2.Sc6#
- 2.Sd7#
- 2.Rxd5#
- 1...d5
- 2.Sc6#
- 2.Sd7#
- 2.Qc7#
- 1...Qxb5!
- 1...Rd5
- 1.Rc6?
- threat
- 2.Sd7#
- 1...Bxf3+
- 2.Sxf3#
- 1...Qxc6
- 2.Sxc6#
- 1...Qa7!
- threat
- 1.cxd4+?
- 1...Bxd4
- 2.Qxd6#
- 1...Kxd4!
- 1...Bxd4
- 1.fxg4?
- threat
- 2.Sf3#
- 1...Rxh4
- 2.Qxf6#
- 1...Qd1
- 2.Sc6#
- 2.Sd7#
- 1...Rd3!
- threat
- 1.Bd5?
- Keys
- 1.Bg6!
- threat
- 2.Qxf6#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rxc4
- 2.Qxd6#
- 1...Rxf4
- 2.Qxd6#
- 1...Rxg6
- 2.Sxg6#
- 1...Bf5
- 2.Rxf5#
- 1...f5
- 2.Qg7#
- threat
- 1.Bg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(c);N_GUARD::S(K),XQ(c)
- Q(c);N_GUARD::S(K)
- R(e);N_GUARD,XP(E)::QAB1(J),XP(h)
- R(k);N_GUARD,XS(H)::QAB1(J),XP(j)
- R(k);N_GUARD::S(H),XR(k)
- B(f);CHECK,XP(C)::S(H),XB(f)
- B(f);N_GUARD::R1(G),XB(f)
- B(f);N_GUARD::R1(G)
- Tries
- Try
- B(F);
- Threat
- QAB1(J),XP(h)
- Vars
- B(f);CHECK,XP(C)::S(H),XB(f)
- R(e);N_GUARD,XB(F)::R1(G)
- Q(c);N_GUARD::S(K),XQ(c)
- Refutation
- P(j);
- Try
- B(F);
- Threat
- QAR1(J),XP(i)
- Vars
- B(f);CHECK,XP(C)::S(H),XB(f)
- B(f);OGATE,XB(F)::R1(G),XB(f)
- Q(c);N_GUARD::S(K),XQ(c)
- Refutation
- Q(c);
- Try
- B(F);
- Threat
- S(K)
- Vars
- B(f);CHECK,XP(C)::S(H),XB(f)
- Q(c);P_PINP(C),XB(F)::S(K),XQ(c)
- Refutation
- Q(c);
- Try
- R(I);CHECK
- Refutation
- Q(c);XR(I)
- Try
- R(I);
- Threat
- S(K)
- Vars
- B(f);CHECK,XP(C)::S(H),XB(f)
- Q(c);XR(I)::S(K),XQ(c)
- Refutation
- Q(c);
- Try
- P(B);CHECK,XR(e)
- Vars
- B(a);XP(B)::QAB1(J),XP(h)
- Refutation
- K(g);N_SPINP(i),S_FLIGHT,XP(B)
- Try
- P(C);XB(f)
- Threat
- S(H)
- Vars
- R(k);N_GUARD,XS(H)::QAB1(J),XP(j)
- Refutation
- R(e);
- Try
- Actual
- B(F);
- Threat
- QAB1(J),XP(j)
- Vars
- B(f);CHECK,XP(C)::S(H),XB(f)
- R(e);N_GUARD,XP(E)::QAB1(J),XP(h)
- R(e);N_GUARD,XR(G)::QAB1(J),XP(h)
- R(k);XB(F)::S(H),XR(k)
- B(f);N_GUARD::R1(G),XB(f)
- P(j);OGATEB::QAB(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).