MESON Chess Problem Database
Problem Display
PID: 255090 (8/3Q3B/8/8/p4K2/rPB1p1p1/P2pP1pp/nRNk2NR w - - 0 1)
Fiedler, Frank
Seidel, Manfred
Schach-Aktiv, 1994
#2
11 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ke1
- 2.Sd3#
- 1...Rxa2
- 2.Sxa2#
- 1...Rxb3
- 2.Sxb3#
- 1...Sc2
- 2.Sd3#
- 1...Sxb3
- 2.Sxb3#
- 1...hxg1Q
- 2.Rxg1#
- 1...hxg1S
- 2.Rxg1#
- 1...hxg1B
- 2.Rxg1#
- 1...hxg1R
- 2.Rxg1#
- 1...axb3
- 2.Sxb3#
- 1...Ke1
- Tries
- 1.Kxe3?
- threat
- 2.Qxd2#
- 1...hxg1Q+
- 2.Rxg1#
- 1...hxg1B+
- 2.Rxg1#
- 1...Ke1
- 2.Sd3#
- 2.Sf3#
- 1...Rxa2
- 2.Sxa2#
- 1...Sxb3
- 2.Sxb3#
- 1...Sc2+!
- threat
- 1.Bc2+?
- 1...Ke1
- 2.Sd3#
- 1...Sxc2
- 2.Sd3#
- 1...Kxc2!
- 1...Ke1
- 1.Rxh2?
- 1...Ke1
- 2.Sd3#
- 1...Rxa2
- 2.Sxa2#
- 1...Rxb3
- 2.Sxb3#
- 1...Sxb3
- 2.Sxb3#
- 1...axb3
- 2.Sxb3#
- 1...Sc2
- 2.Sd3#
- 1...gxh2!
- 1...Ke1
- 1.b4?
- threat
- 2.Sb3#
- 1...Ke1
- 2.Sd3#
- 1...hxg1Q
- 2.Rxg1#
- 1...hxg1S
- 2.Rxg1#
- 1...hxg1B
- 2.Rxg1#
- 1...hxg1R
- 2.Rxg1#
- 1...Rb3
- 2.Sxb3#
- 1...Sb3
- 2.Sxb3#
- 1...Rxc3!
- threat
- 1.Kxe3?
- Keys
- 1.Qh3!
- 1...Ke1
- 2.Sd3#
- 1...Rxa2
- 2.Sxa2#
- 1...Rxb3
- 2.Sxb3#
- 1...Sxb3
- 2.Sxb3#
- 1...dxc1Q
- 2.Qd7#
- 1...dxc1S
- 2.Qd7#
- 1...dxc1B
- 2.Qd7#
- 1...dxc1R
- 2.Qd7#
- 1...gxh1Q
- 2.Qf1#
- 1...gxh1S
- 2.Qf1#
- 1...gxh1B
- 2.Qf1#
- 1...gxh1R
- 2.Qf1#
- 1...hxg1Q
- 2.Rxg1#
- 1...hxg1S
- 2.Rxg1#
- 1...hxg1B
- 2.Rxg1#
- 1...hxg1R
- 2.Rxg1#
- 1...axb3
- 2.Sxb3#
- 1...Sc2
- 2.Sd3#
- 1...Ke1
- 1.Qh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- K(b);N_GUARD,P-FLIGHT::R(A)+S(B),DCHECK
- R(f);XP(E)::R(A)+S(B),XR(f)
- R(f);XP(G)::R(A)+S(B),XR(f)
- S(a);SBLOCK::R(A)+S(B)
- S(a);XP(G)::R(A)+S(B),XS(a)
- P(e);OGATE,P_SPINQ(e),XS(C)::R(D),XQ(e)
- P(e);OGATE,P_SPINS(e),XS(C)::R(D),XS(e)
- P(e);OGATE,P_SPINB(e),XS(C)::R(D),XB(e)
- P(e);OGATE,P_SPINR(e),XS(C)::R(D),XR(e)
- P(i);XP(G)::R(A)+S(B),XP(i)
- Tries
- Try
- K(I);S_FLIGHT,XP(g)
- Threat
- QAR1(J),XP(c)
- Vars
- P(e);CHECK,OGATE,P_SPINQ(e),XS(C)::R(D),XQ(e)
- P(e);CHECK,OGATE,P_SPINB(e),XS(C)::R(D),XB(e)
- R(f);XP(E)::R(A)+S(B),XR(f)
- S(a);XP(G)::R(A)+S(B),XS(a)
- Refutation
- S(a);CHECK
- Try
- B(K);CHECK
- Vars
- K(b);N_GUARD,P-FLIGHT::R(A)+S(B),DCHECK
- S(a);SBLOCK,XB(K)::R(A)+S(B)
- Refutation
- K(b);N_SPINP(c),S_FLIGHT,XB(K)
- Try
- R(D);XP(e)
- Vars
- K(b);N_GUARD,P-FLIGHT::R(A)+S(B),DCHECK
- R(f);XP(E)::R(A)+S(B),XR(f)
- R(f);XP(G)::R(A)+S(B),XR(f)
- S(a);XP(G)::R(A)+S(B),XS(a)
- P(i);XP(G)::R(A)+S(B),XP(i)
- S(a);SBLOCK::R(A)+S(B)
- Refutation
- P(h);XR(D)
- Try
- P(G);
- Threat
- R(A)+S(B)
- Vars
- K(b);N_GUARD,P-FLIGHT::R(A)+S(B),DCHECK
- P(e);OGATE,P_SPINQ(e),XS(C)::R(D),XQ(e)
- P(e);OGATE,P_SPINS(e),XS(C)::R(D),XS(e)
- P(e);OGATE,P_SPINB(e),XS(C)::R(D),XB(e)
- P(e);OGATE,P_SPINR(e),XS(C)::R(D),XR(e)
- R(f);::R(A)+S(B),XR(f)
- S(a);::R(A)+S(B),XS(a)
- Refutation
- R(f);XB(H)
- Try
- Actual
- Q(J);N_PINP(c)
- Vars
- K(b);N_GUARD,P-FLIGHT,P_SPINP(c)::R(A)+S(B),DCHECK
- R(f);XP(E)::R(A)+S(B),XR(f)
- R(f);XP(G)::R(A)+S(B),XR(f)
- S(a);XP(G)::R(A)+S(B),XS(a)
- P(c);OGATEB,P_SPINQ(c),XS(B)::QAR(J)
- P(c);OGATEB,P_SPINS(c),XS(B)::QAR(J)
- P(c);OGATEB,P_SPINB(c),XS(B)::QAR(J)
- P(c);OGATEB,P_SPINR(c),XS(B)::QAR(J)
- P(d);OGATE,XR(D)::QAR2(J)
- P(e);OGATE,P_SPINQ(e),XS(C)::R(D),XQ(e)
- P(e);OGATE,P_SPINS(e),XS(C)::R(D),XS(e)
- P(e);OGATE,P_SPINB(e),XS(C)::R(D),XB(e)
- P(e);OGATE,P_SPINR(e),XS(C)::R(D),XR(e)
- P(i);XP(G)::R(A)+S(B),XP(i)
- S(a);SBLOCK::R(A)+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).