MESON Chess Problem Database
Problem Display
PID: 87818 (BQ6/3p2p1/rnp1pb2/2Bk1nrR/N2pNP2/P2P4/8/1KR5 w - - 0 1)
Stan, Mihail
Buletin Problemistic, 1973
#2
11 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qd6#
- 1...Rg2
- 2.Qd6#
- 1...Rg3
- 2.Qd6#
- 1...Rg4
- 2.Qd6#
- 1...Rg6
- 2.Qd6#
- 1...Ra5
- 2.Sxb6#
- 1...Ra7
- 2.Sxb6#
- 1...Rxa8
- 2.Sxb6#
- 1...Be5
- 2.Qxe5#
- 1...Be7
- 2.Qe5#
- 1...Bd8
- 2.Qe5#
- 1...Se3
- 2.Qd6#
- 1...Sg3
- 2.Qd6#
- 1...Sh4
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sh6
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...Sxa4
- 2.Qb3#
- 1...Sxa8
- 2.Qb3#
- 1...Sc8
- 2.Qb3#
- 1...e5
- 2.Qg8#
- 1...g6
- 2.Sxf6#
- 1...Rg1
- Tries
- 1.Bb4?
- threat
- 2.Rc5#
- 1...e5
- 2.Qg8#
- 1...Rg1
- 2.Qd6#
- 1...Ra5
- 2.Sxb6#
- 1...Be7
- 2.Qe5#
- 1...Sc4
- 2.Qb5#
- 1...d6
- 2.Bxc6#
- 1...Sxa4!
- threat
- 1.Bxb6?
- threat
- 2.Rc5#
- 1...Rxb6+
- 2.Sxb6#
- 1...e5
- 2.Qg8#
- 1...Rg1
- 2.Qd6#
- 1...Be7
- 2.Qe5#
- 1...d6
- 2.Bxc6#
- 1...Ra5!
- threat
- 1.Bd6?
- threat
- 2.Rc5#
- 1...Sxa4
- 2.Qb3#
- 1...e5
- 2.Qg8#
- 1...Ra5
- 2.Sxb6#
- 1...Sc4
- 2.Qb5#
- 1...Rg1!
- threat
- 1.Bf8?
- threat
- 2.Rc5#
- 1...Sxa4
- 2.Qb3#
- 1...Rg1
- 2.Qd6#
- 1...Ra5
- 2.Sxb6#
- 1...Be7
- 2.Qe5#
- 1...Sc4
- 2.Qb5#
- 1...d6
- 2.Bxc6#
- 1...e5!
- threat
- 1.Rxg5?
- threat
- 2.Qd6#
- 1...Bxg5
- 2.Qe5#
- 1...e5
- 2.Qg8#
- 1...Be5
- 2.Qxe5#
- 1...Be7
- 2.Qe5#
- 1...Sc8
- 2.Qb3#
- 1...d6
- 2.Qxd6#
- 1...Sc4!
- threat
- 1.Bb4?
- Keys
- 1.Be7!
- threat
- 2.Rc5#
- 1...Bxe7
- 2.Qe5#
- 1...Sxa4
- 2.Qb3#
- 1...e5
- 2.Qg8#
- 1...Rg1
- 2.Qd6#
- 1...Ra5
- 2.Sxb6#
- 1...Sc4
- 2.Qb5#
- 1...d6
- 2.Bxc6#
- threat
- 1.Be7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 17
- Sets
- R(d);P_PINR(B),P_SPINS(c)::QAR1(K)
- R(d);P_SPINS(c)::QAR1(K)
- R(e);N_GUARD::S(E),XS(f)
- R(e);N_GUARD,N_SPINP(g),XB(J)::S(E),XS(f)
- B(i);N_GUARD::QAR1(K),XB(i)
- B(i);N_GUARD::QAR1(K)
- S(c);N_GUARD,P_SPINR(d)::QAR1(K)
- S(c);N_GUARD,P_SPINR(d)::QAR1(K),XS(c)
- S(f);OGATE,XS(E)::QAB(K)
- S(f);N_SPINP(g),OGATE,XB(J)::QAB(K)
- S(f);OGATE::QAB(K)
- P(h);OGATEB::QAB(K)
- P(k);N_GUARD::S(F),XB(i)
- Tries
- Try
- B(H);
- Threat
- R1(B)
- Vars
- P(h);OGATEB::QAB(K)
- R(d);P_PINR(B),P_SPINS(c)::QAR1(K)
- R(e);N_GUARD::S(E),XS(f)
- B(i);N_GUARD::QAR1(K)
- S(f);OGATE::QAR2(K)
- P(j);N_GUARD::B(J),XP(g)
- Refutation
- S(f);XS(E)
- Try
- B(H);XS(f)
- Threat
- R1(B)
- Vars
- R(e);CHECK,XB(H)::S(E),XR(e)
- P(h);OGATEB::QAB(K)
- R(d);P_PINR(B),P_SPINS(c)::QAR1(K)
- B(i);N_GUARD::QAR1(K)
- P(j);N_GUARD::B(J),XP(g)
- Refutation
- R(e);
- Try
- B(H);
- Threat
- R1(B)
- Vars
- S(f);OGATE,XS(E)::QAB(K)
- P(h);OGATEB::QAB(K)
- R(e);N_GUARD::S(E),XS(f)
- S(f);OGATE::QAR2(K)
- Refutation
- R(d);P_PINR(B),P_SPINS(c)
- Try
- B(H);
- Threat
- R1(B)
- Vars
- S(f);OGATE,XS(E)::QAB(K)
- R(d);P_PINR(B),P_SPINS(c)::QAR1(K)
- R(e);N_GUARD::S(E),XS(f)
- B(i);N_GUARD::QAR1(K)
- S(f);OGATE::QAR2(K)
- P(j);N_GUARD::B(J),XP(g)
- Refutation
- P(h);
- Try
- R(I);P_PINS(c),XR(d)
- Threat
- QAR1(K)
- Vars
- B(i);N_GUARD,N_SPINS(c),XR(I)::QAR1(K)
- P(h);N_SPINS(c),OGATEB::QAB(K)
- B(i);N_GUARD,N_SPINS(c)::QAR1(K),XB(i)
- B(i);N_GUARD::QAR1(K)
- S(f);OGATE::QAB(K)
- P(j);::QAR1(K),XP(j)
- Refutation
- S(f);
- Try
- Actual
- B(H);
- Threat
- R1(B)
- Vars
- B(i);N_GUARD,XB(H)::QAR1(K)
- S(f);OGATE,XS(E)::QAB(K)
- P(h);OGATEB::QAB(K)
- R(d);P_PINR(B),P_SPINS(c)::QAR1(K)
- R(e);N_GUARD::S(E),XS(f)
- S(f);OGATE::QAR2(K)
- P(j);N_GUARD::B(J),XP(g)
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).