MESON Chess Problem Database
Problem Display
PID: 11698 (7N/7n/5PNp/2KQB1kr/3R2p1/2p1ppp1/5q2/2r5 w - - 0 1)
Giegold, Fritz Emil
Comm., Deutsche Schachblatter, 1971-1972
#2
7 + 11
SOLUTION
- SOUND
- Sets
- 1...Sxf6
- 2.Bf4#
- 1...Sxf6
- Tries
- 1.Sf7+?
- 1...Kf5
- 2.Se7#
- 1...Kxg6!
- 1...Kf5
- 1.Rd3?
- threat
- 2.Bxc3#
- 2.Bd4#
- 1...e2+
- 2.Bd4#
- 1...Kf5
- 2.Bxc3#
- 2.Bd4#
- 1...Sxf6
- 2.Bf4#
- 1...c2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 1...Qa2!
- threat
- 1.Rc4?
- threat
- 2.Bxc3#
- 2.Bd4#
- 1...e2+
- 2.Bd4#
- 1...Kf5
- 2.Bxc3#
- 2.Bd4#
- 1...Sxf6
- 2.Bf4#
- 1...Qd2
- 2.Bd4#
- 1...Rd1
- 2.Bd4#
- 1...c2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 1...Qc2!
- threat
- 1.Re4?
- threat
- 2.Bxc3#
- 2.Bd4#
- 1...e2+
- 2.Bd4#
- 1...Kf5
- 2.Bxc3#
- 2.Bd4#
- 1...Sxf6
- 2.Bf4#
- 1...Qd2
- 2.Bd4#
- 1...Rd1
- 2.Bd4#
- 1...c2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 1...Qa2!
- threat
- 1.Rxg4+?
- 1...Kf5
- 2.Qd7#
- 1...Kxg4!
- 1...Kf5
- 1.Qe4?
- threat
- 2.Sf7#
- 2.Qf4#
- 2.Qxg4#
- 1...Sxf6
- 2.Sf7#
- 2.Bf4#
- 2.Qf4#
- 1...Rhh1
- 2.Qxg4#
- 1...Rh2
- 2.Qxg4#
- 1...Rh3
- 2.Qxg4#
- 1...Qa2
- 2.Qf4#
- 2.Qxg4#
- 1...Rh4!
- threat
- 1.Qe6?
- threat
- 2.Bf4#
- 2.Rxg4#
- 2.Qxg4#
- 1...Sxf6
- 2.Bf4#
- 2.Bxf6#
- 2.Qxf6#
- 1...Rhh1
- 2.Qxg4#
- 1...Rh2
- 2.Qxg4#
- 1...Rh3
- 2.Qxg4#
- 1...e2
- 2.Bf4#
- 2.Qxg4#
- 1...Rh4!
- threat
- 1.Qd7?
- threat
- 2.Rxg4#
- 2.Qxg4#
- 1...Sxf6
- 2.Bf4#
- 1...Rhh1
- 2.Qxg4#
- 1...Rh2
- 2.Qxg4#
- 1...Rh3
- 2.Qxg4#
- 1...e2
- 2.Qxg4#
- 1...Rh4!
- threat
- 1.Sf7+?
- Keys
- 1.Rd2!
- threat
- 2.Bxc3#
- 2.Bd4#
- 1...cxd2+
- 2.Bc3#
- 1...exd2+
- 2.Bd4#
- 1...e2+
- 2.Bd4#
- 1...Kf5
- 2.Bxc3#
- 2.Bd4#
- 1...Qxd2
- 2.Bd4#
- 1...Sxf6
- 2.Bf4#
- 1...c2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- threat
- 1.Rd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(k);SBLOCK,XP(E)::QAR(C)+B(D),DCHECK
- Tries
- Try
- S(G);CHECK
- Vars
- K(h);P-FLIGHT::S(F)
- Refutation
- K(h);P-FLIGHT,XS(F)
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- P(d);CHECK::QAR(C)+B(D)
- S(k);SBLOCK,XP(E)::QAR(C)+B(D),DCHECK
- Refutation
- Q(b);
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- P(d);CHECK::QAR(C)+B(D)
- S(k);SBLOCK,XP(E)::QAR(C)+B(D),DCHECK
- Q(b);::QAR(C)+B(D)
- R(a);::QAR(C)+B(D)
- Refutation
- Q(b);
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- P(d);CHECK::QAR(C)+B(D)
- S(k);SBLOCK,XP(E)::QAR(C)+B(D),DCHECK
- Q(b);::QAR(C)+B(D)
- R(a);::QAR(C)+B(D)
- Refutation
- Q(b);
- Try
- R(A);CHECK,XP(g)
- Vars
- K(h);P-FLIGHT::QAB(C)
- Refutation
- K(h);P-FLIGHT,XR(A)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(i);::QAR1(C),XP(g)
- Refutation
- R(i);
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(i);::QAR1(C),XP(g)
- Refutation
- R(i);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(k);SBLOCK,XP(E)::B(D)
- R(i);::QAR1(C),XP(g)
- P(d);P_PINR(A)::QAR1(C),XP(g)
- Refutation
- R(i);
- Try
- Actual
- R(A);
- Threat
- DUALS(2)
- Vars
- P(c);CHECK,XR(A)::QAR(C)+B(D)
- P(d);CHECK,XR(A)::QAR(C)+B(D)
- P(d);CHECK::QAR(C)+B(D)
- Q(b);XR(A)::QAR(C)+B(D)
- S(k);SBLOCK,XP(E)::QAR(C)+B(D),DCHECK
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).