MESON Chess Problem Database
Problem Display
PID: 245364 (3R4/8/2p1pK1p/1r2p3/Q1NNk1p1/n5P1/4B3/2B3b1 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Revista Romana de Sah, 1982
#2
8 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qxc6#
- 1...Rb2
- 2.Qxc6#
- 1...Rb3
- 2.Qxc6#
- 1...Rb4
- 2.Qxc6#
- 1...Rb7
- 2.Qxc6#
- 1...Rb8
- 2.Qxc6#
- 1...Sb1
- 2.Qc2#
- 1...Sc2
- 2.Qxc2#
- 1...Sxc4
- 2.Qc2#
- 1...Rb1
- Tries
- 1.Kxe6?
- threat
- 2.Sd6#
- 1...Sxc4
- 2.Qc2#
- 1...Rb4
- 2.Qxc6#
- 1...Rd5!
- threat
- 1.Sxe5?
- threat
- 2.Bd3#
- 1...Rb3
- 2.Qxc6#
- 1...Rxe5!
- threat
- 1.Sc2?
- threat
- 2.Sd2#
- 1...Sxc2
- 2.Qxc2#
- 1...Sxc4!
- threat
- 1.Sxb5?
- threat
- 2.Sc3#
- 1...Sxb5
- 2.Qc2#
- 1...cxb5
- 2.Qa8#
- 1...Sb1
- 2.Se3#
- 2.Qc2#
- 1...Bd4!
- threat
- 1.Sf5?
- threat
- 2.Sd2#
- 1...Sxc4
- 2.Qc2#
- 1...exf5!
- threat
- 1.Bxh6?
- threat
- 2.Sd2#
- 1...Sxc4
- 2.Qc2#
- 1...Rb2
- 2.Qxc6#
- 1...Sb1
- 2.Qc2#
- 1...Be3!
- threat
- 1.Qd1?
- threat
- 2.Bd3#
- 2.Qd3#
- 1...Rd5
- 2.Qd3#
- 1...Rb3!
- threat
- 1.Qb3?
- threat
- 2.Sd2#
- 2.Bd3#
- 2.Qd3#
- 1...Bxd4
- 2.Sd2#
- 2.Sd6#
- 2.Qd3#
- 1...Sxc4
- 2.Bd3#
- 2.Qc2#
- 2.Qd3#
- 1...exd4
- 2.Sd2#
- 2.Sd6#
- 2.Qd3#
- 1...Rd5
- 2.Qd3#
- 1...Be3
- 2.Bd3#
- 2.Qd3#
- 2.Qxe3#
- 1...Sb1
- 2.Bd3#
- 2.Qc2#
- 2.Qd3#
- 1...Rxb3!
- threat
- 1.Qxa3?
- threat
- 2.Sd2#
- 2.Bd3#
- 2.Qd3#
- 1...Bxd4
- 2.Sd2#
- 2.Qd3#
- 1...exd4
- 2.Sd2#
- 2.Qd3#
- 1...Rd5
- 2.Qd3#
- 1...Be3
- 2.Bd3#
- 2.Qd3#
- 2.Qxe3#
- 1...Rb2
- 2.Bd3#
- 2.Qd3#
- 1...Rb3!
- threat
- 1.Kxe6?
- Keys
- 1.Sf3!
- threat
- 2.Sfd2#
- 1...Sxc4
- 2.Qc2#
- 1...gxf3
- 2.Bd3#
- 1...Rb2
- 2.Qxc6#
- 1...Rd5
- 2.Sd6#
- 1...Be3
- 2.Scd2#
- 1...Sb1
- 2.Qc2#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- R(e);OGATE::QAB(D),XP(g)
- S(b);N_GUARD::QAB(D)
- S(b);N_GUARD::QAB(D),XS(b)
- S(b);N_GUARD,XS(E)::QAB(D)
- Tries
- Try
- K(G);P-FLIGHT,XP(h)
- Threat
- S(E)
- Vars
- S(b);N_GUARD,XS(E)::QAB(D)
- R(e);OGATE::QAB(D),XP(g)
- Refutation
- R(e);
- Try
- S(E);XP(f)
- Threat
- B(B)
- Vars
- R(e);OGATE::QAB(D),XP(g)
- Refutation
- R(e);XS(E)
- Try
- S(F);
- Threat
- QAR(D)+S(E),DCHECK
- Vars
- S(b);OGATE,XS(F)::QAB(D),XS(b)
- Refutation
- S(b);P_SPINS(b),XS(E)
- Try
- S(F);XR(e)
- Threat
- S(F)
- Vars
- S(b);N_GUARD,XS(F)::QAB(D)
- P(g);OGATEB,XS(F)::QAB(D)
- Refutation
- B(a);
- Try
- S(F);
- Threat
- QAR(D)+S(E),DCHECK
- Vars
- S(b);N_GUARD,P_SPINS(b),XS(E)::QAB(D)
- Refutation
- P(h);XS(F)
- Try
- B(A);XP(i)
- Threat
- S(E)
- Vars
- S(b);N_GUARD,XS(E)::QAB(D)
- R(e);OGATE::QAB(D),XP(g)
- S(b);N_GUARD::QAB(D)
- Refutation
- B(a);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(e);::QAB1(D)
- Refutation
- R(e);
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- R(e);::QAB1(D)
- Refutation
- R(e);XQ(D)
- Try
- Q(D);XS(b)
- Threat
- DUALS(3)
- Vars
- R(e);::QAB1(D)
- Refutation
- R(e);
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- S(b);N_GUARD,P_SPINS(b),XS(E)::QAB(D)
- P(d);SBLOCK,XS(F)::B(B)
- R(e);OGATE::QAB(D),XP(g)
- R(e);SBLOCK::QAR(D)+S(E),DCHECK
- B(a);SBLOCK::QAR(D)+S(E),DCHECK
- S(b);N_GUARD::QAB(D)
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).