MESON Chess Problem Database
Problem Display
PID: 97012 (4B1b1/1p3p2/1BpkpPn1/5QN1/3NK3/1n6/3b4/3R4 w - - 0 1)
Gruber, Bratoljub
5th HM., Problem (Zagreb), 1959
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Sb5#
- 1...Be1
- 2.Sb5#
- 1...Bc3
- 2.Sb5#
- 1...Be3
- 2.Sb5#
- 1...Bb4
- 2.Sb5#
- 1...Bf4
- 2.Sb5#
- 1...Ba5
- 2.Sb5#
- 1...Bxg5
- 2.Sb5#
- 1...Bh7
- 2.Sxf7#
- 1...Sa1
- 2.Qc5#
- 1...Sc1
- 2.Qc5#
- 1...Sxd4
- 2.Qc5#
- 1...Sa5
- 2.Qc5#
- 1...Sc5+
- 2.Qxc5#
- 1...Sf4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...c5
- 2.Sb5#
- 1...exf5+
- 2.Sxf5#
- 1...e5
- 2.Qd7#
- 1...Bc1
- Tries
- 1.Sxb3?
- threat
- 2.Rxd2#
- 2.Qc5#
- 1...c5
- 2.Rxd2#
- 2.Qxc5#
- 1...Sf4
- 2.Qc5#
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Qc5#
- 2.Qe5#
- 1...e5
- 2.Rxd2#
- 2.Qd7#
- 1...exf5+!
- threat
- 1.Sdxe6?
- threat
- 2.Bc7#
- 1...Sc5+
- 2.Bxc5#
- 2.Qxc5#
- 1...fxe6!
- threat
- 1.Sgxe6?
- threat
- 2.Bc7#
- 1...Sc5+
- 2.Bxc5#
- 2.Qxc5#
- 1...Ba5
- 2.Sb5#
- 1...fxe6!
- threat
- 1.Rxd2?
- threat
- 2.Sxb3#
- 2.Sb5#
- 1...Sc5+
- 2.Qxc5#
- 1...exf5+
- 2.Sxf5#
- 1...Sxd4
- 2.Rxd4#
- 2.Qc5#
- 1...Sa1
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sdf3#
- 2.Sb5#
- 2.Sxc6#
- 2.Sdxe6#
- 2.Qc5#
- 1...Sc1
- 2.Sb5#
- 2.Qc5#
- 1...Sa5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sdf3#
- 2.Sb5#
- 2.Sxc6#
- 2.Sdxe6#
- 2.Qc5#
- 1...Sf4
- 2.Sb5#
- 2.Qe5#
- 1...Se5
- 2.Sb5#
- 2.Qxe5#
- 1...Se7
- 2.Sb5#
- 2.Qe5#
- 1...Sxd2+!
- threat
- 1.Qf4+?
- 1...Bxf4
- 2.Sb5#
- 2.Sf5#
- 1...Se5
- 2.Qxe5#
- 1...e5
- 2.Sf5#
- 1...Sxf4!
- 1...Bxf4
- 1.Qa5?
- threat
- 2.Bc7#
- 1...Sc5+
- 2.Bxc5#
- 2.Qxc5#
- 1...Bxa5
- 2.Sb5#
- 2.Sf5#
- 1...Sxa5!
- threat
- 1.Sxb3?
- Keys
- 1.Qb5!
- 1...Sc5+
- 2.Qxc5#
- 1...Bxg5
- 2.Sf5#
- 1...Sxd4
- 2.Qc5#
- 1...cxb5
- 2.Sxb5#
- 1...Bc1
- 2.Sf5#
- 1...Be1
- 2.Sf5#
- 1...Bc3
- 2.Sf5#
- 1...Be3
- 2.Sf5#
- 1...Bb4
- 2.Sf5#
- 1...Bf4
- 2.Sf5#
- 1...Ba5
- 2.Sf5#
- 1...Bh7
- 2.Sxf7#
- 1...Sa1
- 2.Qc5#
- 1...Sc1
- 2.Qc5#
- 1...Sa5
- 2.Qc5#
- 1...Sf4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...c5
- 2.Qd7#
- 1...e5
- 2.Sf5#
- 1...Sc5+
- 1.Qb5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(a);::R(A)+S(B),DCHECK
- B(a);XS(E)::R(A)+S(B),DCHECK
- B(i);N_GUARD::S(E),XP(h)
- S(b);N_GUARD::QAB1(D)
- S(b);N_GUARD,XS(B)::QAB1(D)
- S(b);CHECK,N_GUARD::QAB1(D),XS(b)
- S(f);N_GUARD::QAB1(D)
- S(f);N_GUARD::QAB1(D),XS(f)
- P(c);N_GUARD::S(B)
- P(e);CHECK,XQ(D)::S(B),XP(e)
- P(e);OGATE::QAR1(D)
- Tries
- Try
- S(B);P_PINB(a),XS(b)
- Threat
- DUALS(2)
- Vars
- S(f);N_GUARD::QAB1(D),XS(f)
- Refutation
- P(e);CHECK,XQ(D)
- Try
- S(B);P_PINB(a),XP(e)
- Threat
- B(F)
- Refutation
- P(h);XS(B)
- Try
- S(E);XP(e)
- Threat
- B(F)
- Vars
- B(a);::R(A)+S(B),DCHECK
- Refutation
- P(h);XS(E)
- Try
- R(A);XB(a)
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,N_GUARD::QAB1(D),XS(b)
- P(e);CHECK,XQ(D)::R(A)+S(B),DCHECK,XP(e)
- Refutation
- S(b);CHECK,XR(A)
- Try
- Q(D);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAB1(D),XS(f)
- P(e);P_SPINP(e)::S(B)
- Refutation
- S(f);XQ(D)
- Try
- Q(D);
- Threat
- B(F)
- Refutation
- S(b);XQ(D)
- Try
- Actual
- Q(D);
- Vars
- S(b);CHECK,N_GUARD::QAB1(D),XS(b)
- B(a);XS(E)::R(A)+S(B),DCHECK
- S(b);N_GUARD,XS(B)::QAB1(D)
- P(c);XQ(D)::S(B),XP(c)
- B(a);::R(A)+S(B),DCHECK
- B(i);N_GUARD::S(E),XP(h)
- S(b);N_GUARD::QAB1(D)
- S(f);N_GUARD::QAB1(D)
- S(f);N_GUARD::QAB1(D),XS(f)
- P(c);OGATE::QAR1(D)
- P(e);N_GUARD::S(B)
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).