MESON Chess Problem Database
Problem Display
PID: 39606 (1N1N4/1p1P1P2/1Pp5/R1Brkr2/2P4Q/8/4K3/1B2R3 w - - 0 1)
Burger, Robert Eugene
10th Place, Match: Macedonia - USA, 2001
#2
12 + 5
| 145 | StrateGems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Kxd1#
- 1...Rd2+
- 2.Kxd2#
- 1...Rd3
- 2.Kxd3#
- 1...Rd4
- 2.Qxd4#
- 1...Rd6
- 2.Bd4#
- 1...Rxd7
- 2.Sxd7#
- 1...Rf1
- 2.Kxf1#
- 1...Rf2+
- 2.Kxf2#
- 1...Rf3
- 2.Kxf3#
- 1...Rf4
- 2.Qe7#
- 1...Rg5
- 2.Qxg5#
- 1...Rh5
- 2.Kf1#
- 2.Kf2#
- 2.Kf3#
- 1...Rf6
- 2.Qe4#
- 1...Rd1
- Tries
- 1.Ke3?
- threat
- 2.Qe7#
- 1...Rd3+
- 2.Kxd3#
- 1...Rf3+
- 2.Kxf3#
- 1...Rxd7
- 2.Sxd7#
- 1...Rg5
- 2.Qxg5#
- 2.Qf4#
- 1...Rd6
- 2.Bd4#
- 1...Rf6
- 2.Qe4#
- 1...Rxf7!
- threat
- 1.Sdxc6+?
- 1...Ke6
- 2.Qe7#
- 1...bxc6!
- 1...Ke6
- 1.Bd3?
- threat
- 2.Kd1#
- 2.Kd2#
- 1...Rf2+
- 2.Kxf2#
- 1...Rxd3
- 2.Kxd3#
- 1...Rg5
- 2.Qxg5#
- 1...Rd4
- 2.Qxd4#
- 1...Rf1
- 2.Kxf1#
- 1...Rf3
- 2.Kxf3#
- 1...Rf4
- 2.Qe7#
- 1...Rxc5!
- threat
- 1.Be7?
- threat
- 2.Qe4#
- 1...Rf2+
- 2.Kxf2#
- 1...Rf4!
- threat
- 1.Ra3?
- threat
- 2.Re3#
- 1...Rd2+
- 2.Kxd2#
- 1...Rf2+
- 2.Kxf2#
- 1...Rg5
- 2.Qxg5#
- 1...Rd3
- 2.Kxd3#
- 1...Rd4
- 2.Qxd4#
- 1...Rf3
- 2.Kxf3#
- 1...Rf4
- 2.Qe7#
- 1...Rxc5!
- threat
- 1.Qg3+?
- 1...Kf6
- 2.f8Q#
- 2.f8R#
- 1...Rf4!
- 1...Kf6
- 1.f8Q?
- threat
- 2.Bd4#
- 2.Bd6#
- 2.Qfe7#
- 2.Qe4#
- 2.Qxf5#
- 2.Qe8#
- 1...Rd2+
- 2.Kxd2#
- 1...Rf2+
- 2.Kxf2#
- 1...Rxc5
- 2.Kd1#
- 2.Kd2#
- 2.Kd3#
- 2.Rxc5#
- 2.Qxc5#
- 2.Qfe7#
- 2.Qe4#
- 1...Rxd7
- 2.Sxd7#
- 2.Bd4#
- 2.Bd6#
- 2.Qe4#
- 2.Qxf5#
- 1...Rf4
- 2.Qhe7#
- 2.Qfe7#
- 2.Qhxf4#
- 2.Qfxf4#
- 2.Qe8#
- 1...Rd3
- 2.Kxd3#
- 2.Bd4#
- 2.Bd6#
- 2.Qfe7#
- 2.Qe8#
- 1...Rd4
- 2.Bxd4#
- 2.Bd6#
- 2.Qfe7#
- 2.Qxd4#
- 2.Qxf5#
- 2.Qe8#
- 1...Rd6
- 2.Bd4#
- 2.Bxd6#
- 2.Qxd6#
- 2.Qe4#
- 2.Qxf5#
- 1...Rf1
- 2.Kxf1#
- 2.Bd4#
- 2.Bd6#
- 2.Qhe7#
- 2.Qfe7#
- 2.Qe4#
- 2.Qe8#
- 1...Rf3
- 2.Kxf3#
- 2.Bd4#
- 2.Bd6#
- 2.Qhe7#
- 2.Qfe7#
- 2.Qe4#
- 2.Qe8#
- 1...Rg5
- 2.Kf1#
- 2.Kf2#
- 2.Kf3#
- 2.Bd4#
- 2.Bd6#
- 2.Qxg5#
- 2.Qe7#
- 2.Qe4#
- 2.Qhf4#
- 2.Qff4#
- 1...Rh5
- 2.Kf1#
- 2.Kf2#
- 2.Kf3#
- 2.Bd4#
- 2.Bd6#
- 2.Qg3#
- 2.Qhf6#
- 2.Qhe7#
- 2.Qfe7#
- 2.Qg7#
- 2.Qe4#
- 2.Qhf4#
- 2.Qxh5#
- 2.Qff4#
- 2.Qff6#
- 2.Qe8#
- 1...Rf6
- 2.Bd4#
- 2.Qhxf6#
- 2.Qe4#
- 2.Qfxf6#
- 1...Rf7
- 2.Bd4#
- 2.Bd6#
- 1...Rxf8!
- threat
- 1.f8B?
- threat
- 2.Bd4#
- 2.Bcd6#
- 1...Rd2+
- 2.Kxd2#
- 1...Rf2+
- 2.Kxf2#
- 1...Rxc5
- 2.Kd1#
- 2.Kd2#
- 2.Kd3#
- 2.Rxc5#
- 1...Rg5
- 2.Bd4#
- 2.Qxg5#
- 1...Rf4
- 2.Qe7#
- 1...Rd4
- 2.Bxd4#
- 2.Bcd6#
- 2.Qxd4#
- 1...Rd6
- 2.Bd4#
- 2.Bcxd6#
- 2.Bfxd6#
- 1...Rf6
- 2.Bd4#
- 2.Qe4#
- 1...Rxf8!
- threat
- 1.Ke3?
- Keys
- 1.Qh6!
- 1...Rd2+
- 2.Kxd2#
- 1...Rf2+
- 2.Kxf2#
- 1...Rxc5
- 2.Kd3#
- 1...Rxd7
- 2.Sxd7#
- 1...Rxf7
- 2.Sxf7#
- 1...Rd3
- 2.Kxd3#
- 1...Rg5
- 2.Kf3#
- 2.Qxg5#
- 1...Rf4
- 2.Qe6#
- 1...Rd1
- 2.Kxd1#
- 1...Rd4
- 2.Bd6#
- 1...Rd6
- 2.Qxd6#
- 1...Rf1
- 2.Kxf1#
- 1...Rf3
- 2.Kxf3#
- 1...Rh5
- 2.Kf1#
- 2.Kf2#
- 2.Kf3#
- 1...Rf6
- 2.Qe3#
- 1...Rd2+
- 1.Qh6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(a);::R(B)+K(C),XR(a)
- R(a);CHECK::R(B)+K(C),XR(a)
- R(a);N_GUARD::QAB1(E),XR(a)
- R(a);SBLOCK::R(F)+B(G),DCHECK
- R(a);XP(I)::S(K),XR(a)
- R(c);::R(B)+K(C),XR(c)
- R(c);CHECK::R(B)+K(C),XR(c)
- R(c);SBLOCK::QAR2(E)
- R(c);OGATEB::QAR2(E),XR(c)
- R(c);SBLOCK::QAR1(E)
- Tries
- Try
- K(C);P-FLIGHT
- Threat
- QAR2(E)
- Vars
- R(a);CHECK::R(B)+K(C),XR(a)
- R(c);CHECK::R(B)+K(C),XR(c)
- R(a);XP(I)::S(K),XR(a)
- R(a);SBLOCK::R(F)+B(G),DCHECK
- R(c);SBLOCK::QAR1(E)
- Refutation
- R(c);XP(J)
- Try
- S(L);CHECK,XP(d)
- Vars
- K(b);P-FLIGHT::QAR1(E)
- Refutation
- P(e);XS(L)
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(c);CHECK::R(B)+K(C),XR(c)
- R(a);XB(A)::R(B)+K(C),XR(a)
- R(c);OGATEB::QAR2(E),XR(c)
- R(a);N_GUARD::QAB1(E),XR(a)
- R(c);::R(B)+K(C),XR(c)
- R(c);SBLOCK::QAR2(E)
- Refutation
- R(a);P_SPINR(a),XB(G)
- Try
- B(G);P_PINR(a)
- Threat
- QAR1(E)
- Vars
- R(c);CHECK::R(B)+K(C),XR(c)
- Refutation
- R(c);
- Try
- R(F);
- Threat
- R(F)
- Vars
- R(a);CHECK::R(B)+K(C),XR(a)
- R(c);CHECK::R(B)+K(C),XR(c)
- R(c);OGATEB::QAR2(E),XR(c)
- R(a);::R(B)+K(C),XR(a)
- R(a);N_GUARD::QAB1(E),XR(a)
- R(c);::R(B)+K(C),XR(c)
- R(c);SBLOCK::QAR2(E)
- Refutation
- R(a);XB(G)
- Try
- Q(E);CHECK
- Vars
- K(b);S_FLIGHT::P=Q
- Refutation
- R(c);P_SPINR(c)
- Try
- P(J);
- Threat
- DUALS(6)
- Vars
- R(a);CHECK::R(B)+K(C),XR(a)
- R(c);CHECK::R(B)+K(C),XR(c)
- Refutation
- R(c);XQ(J)
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- R(a);CHECK::R(B)+K(C),XR(a)
- R(c);CHECK::R(B)+K(C),XR(c)
- R(c);SBLOCK::QAR2(E)
- Refutation
- R(c);XB(J)
- Try
- Actual
- Q(E);
- Vars
- R(a);CHECK::R(B)+K(C),XR(a)
- R(c);CHECK::R(B)+K(C),XR(c)
- R(a);P_SPINR(a),XB(G)::R(B)+K(C)
- R(a);XP(I)::S(K),XR(a)
- R(c);XP(J)::S(L),XR(c)
- R(a);::R(B)+K(C),XR(a)
- R(c);SBLOCK::QAR1(E)
- R(a);SBLOCK::R(F)+B(G),DCHECK
- R(a);N_GUARD::QAB1(E),XR(a)
- R(c);::R(B)+K(C),XR(c)
- R(c);SBLOCK::QAR2(E)
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).