MESON Chess Problem Database
Problem Display
PID: 233276 (r3B3/nRNp2r1/PBk3bR/1p2P3/5N1n/1K1p1q2/2pP4/7Q w - - 0 1)
Paslack, Rainer
Freie Presse, 1991
#2
11 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Qxe4#
- 1...Qd5+
- 2.Qxd5#
- 1...Sf5
- 2.Qxf3#
- 1...c1Q
- 2.Qxc1#
- 1...c1S+
- 2.Qxc1#
- 1...c1B
- 2.Qxc1#
- 1...c1R
- 2.Qxc1#
- 1...Qe4
- Tries
- 1.Se2?
- threat
- 2.Sd4#
- 1...Qd5+
- 2.Qxd5#
- 1...c1S+
- 2.Qxc1#
- 1...Sf5
- 2.Qxf3#
- 1...dxe2+!
- threat
- 1.Sfd5?
- threat
- 2.Sb4#
- 1...Qxd5+
- 2.Qxd5#
- 1...c1S+
- 2.Qxc1#
- 1...b4
- 2.Sxb4#
- 1...Qf7!
- threat
- 1.Sfe6?
- threat
- 2.Sd4#
- 1...Qd5+
- 2.Qxd5#
- 1...c1S+
- 2.Qxc1#
- 1...Sf5
- 2.Qxf3#
- 1...Bf7!
- threat
- 1.Sxg6?
- threat
- 2.Se7#
- 1...Qd5+
- 2.Qxd5#
- 1...c1S+
- 2.Qxc1#
- 1...Sxg6
- 2.Qxf3#
- 1...Re7
- 2.Sxe7#
- 1...Rxg6!
- threat
- 1.Scd5?
- threat
- 2.Sb4#
- 2.Rc7#
- 1...Qxd5+
- 2.Qxd5#
- 1...c1S+
- 2.Qxc1#
- 1...Rc8
- 2.Sb4#
- 1...b4!
- threat
- 1.Sxa8?
- threat
- 2.Rc7#
- 1...Qd5+
- 2.Qxd5#
- 1...c1S+
- 2.Qxc1#
- 1...b4!
- threat
- 1.Rxg6+?
- 1...Sxg6
- 2.Qxf3#
- 1...Rxg6!
- 1...Sxg6
- 1.Se2?
- Keys
- 1.Sce6!
- threat
- 2.Sd4#
- 1...Qd5+
- 2.Qxd5#
- 1...c1S+
- 2.Qxc1#
- 1...Bf7
- 2.Bxd7#
- 1...Sf5
- 2.Qxf3#
- threat
- 1.Sce6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- Q(c);OGATE::QAB(A),XQ(c)
- Q(c);CHECK,OGATE::QAB1(A),XQ(c)
- S(d);N_GUARD::QAB(A),XQ(c)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);CHECK,OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- Tries
- Try
- S(D);
- Threat
- S(D)
- Vars
- Q(c);CHECK,OGATE::QAB1(A),XQ(c)
- P(a);CHECK,OGATEB::QAR(A),XS(a)
- S(d);N_GUARD::QAB(A),XQ(c)
- Refutation
- P(b);CHECK,XS(D)
- Try
- S(D);N_PINQ(c)
- Threat
- S(D)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(D)::QAB1(A),XQ(c)
- P(a);CHECK,OGATEB::QAR(A),XS(a)
- P(e);::S(D),XP(e)
- Refutation
- Q(c);P_PINS(D)
- Try
- S(D);N_PINB(g)
- Threat
- S(D)
- Vars
- Q(c);CHECK,OGATE::QAB1(A),XQ(c)
- P(a);CHECK,OGATEB::QAR(A),XS(a)
- S(d);N_GUARD,S_CUTB(g)::QAB(A),XQ(c)
- Refutation
- B(g);P_PINS(D)
- Try
- S(D);XB(g)
- Threat
- R(H)+S(D),DCHECK
- Vars
- Q(c);CHECK,OGATE::QAB1(A),XQ(c)
- P(a);CHECK,OGATEB::QAR(A),XS(a)
- S(d);N_GUARD,P_SPINS(d),XS(D)::QAB(A),XQ(c)
- R(j);::R(H)+S(D),DCHECK,XR(j)
- Refutation
- R(j);P_SPINR(j),XS(D)
- Try
- S(J);N_PINQ(c)
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(J)::QAB1(A),XQ(c)
- P(a);CHECK,OGATEB::QAR(A),XS(a)
- R(k);::S(J)
- Refutation
- P(e);
- Try
- S(J);XR(k)
- Threat
- R1(I)
- Vars
- Q(c);CHECK,OGATE::QAB1(A),XQ(c)
- P(a);CHECK,OGATEB::QAR(A),XS(a)
- Refutation
- P(e);
- Try
- R(H);CHECK,XB(g)
- Vars
- S(d);XR(H)::QAB(A),XQ(c)
- Refutation
- R(j);XR(H)
- Try
- Actual
- S(J);N_PINB(g)
- Threat
- S(J)
- Vars
- Q(c);CHECK,OGATE::QAB1(A),XQ(c)
- P(a);CHECK,OGATEB::QAR(A),XS(a)
- B(g);P_PINS(J),S_CUTR(j)::B(K),XP(i)
- S(d);N_GUARD,S_CUTB(g)::QAB(A),XQ(c)
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).