MESON Chess Problem Database
Problem Display
PID: 73923 (6q1/5p2/5bB1/2p5/p4p2/K2R1n2/2Q2p2/k1n4r w - - 0 1)
Wallau, Horst
Mainzer Allgemeine Zeitung, 1993
#2
4 + 11
| 6113 | Problemschach-Jahrbuch (1993) | 1994 |
SOLUTION
- SOUND
- Sets
- 1...Rh2
- 2.Qxc1#
- 1...Rh3
- 2.Qxc1#
- 1...Rh4
- 2.Qxc1#
- 1...Rh5
- 2.Qxc1#
- 1...Rh6
- 2.Qxc1#
- 1...Rh7
- 2.Qxc1#
- 1...Rh8
- 2.Qxc1#
- 1...Bb2+
- 2.Qxb2#
- 1...Bh4
- 2.Qb2#
- 1...Bg5
- 2.Qb2#
- 1...Be7
- 2.Qb2#
- 1...Bd8
- 2.Qb2#
- 1...Sa2
- 2.Qxa2#
- 1...Se2
- 2.Qa2#
- 1...Sb3
- 2.Qa2#
- 1...Sxd3
- 2.Qa2#
- 1...Se1
- 2.Qxc1#
- 1...Sg1
- 2.Qxc1#
- 1...Sd4
- 2.Qb2#
- 1...Se5
- 2.Qb2#
- 1...f1S
- 2.Qxc1#
- 1...f1B
- 2.Qxc1#
- 1...Rh2
- Tries
- 1.Rb3?
- threat
- 2.Rb1#
- 2.Qb1#
- 1...Bb2+
- 2.Qxb2#
- 1...Qxg6
- 2.Rb1#
- 1...Sxb3
- 2.Qa2#
- 1...axb3
- 2.Qb1#
- 1...Qb8
- 2.Qb1#
- 1...Sa2
- 2.Qxa2#
- 1...Se2
- 2.Qa2#
- 1...Sd3
- 2.Qa2#
- 1...Sd2!
- threat
- 1.Rc3?
- threat
- 2.Qb1#
- 2.Qb2#
- 1...Qxg6
- 2.Qb2#
- 1...Bxc3
- 2.Qb1#
- 2.Qxc3#
- 1...fxg6
- 2.Qb2#
- 1...Sa2
- 2.Qxa2#
- 2.Qb2#
- 1...Se2
- 2.Qa2#
- 2.Qb2#
- 1...Sb3
- 2.Qa2#
- 2.Qb2#
- 1...Sd3
- 2.Qa2#
- 1...Sd2
- 2.Qb2#
- 1...Qb8!
- threat
- 1.Rd4?
- threat
- 2.Qb1#
- 2.Qb2#
- 2.Qc3#
- 1...Qxg6
- 2.Qb2#
- 1...Bxd4
- 2.Qb1#
- 1...cxd4
- 2.Qb1#
- 2.Qb2#
- 1...fxg6
- 2.Qb2#
- 1...Sa2
- 2.Qxa2#
- 2.Qb2#
- 1...Se2
- 2.Qa2#
- 2.Qb2#
- 1...Sb3
- 2.Qa2#
- 2.Qb2#
- 2.Qc3#
- 1...Sd3
- 2.Qa2#
- 1...Sd2
- 2.Qb2#
- 2.Qc3#
- 1...Qb8!
- threat
- 1.Rb3?
- Keys
- 1.Rd1!
- threat
- 2.Qb1#
- 2.Qxc1#
- 2.Qa2#
- 1...Bb2+
- 2.Qxb2#
- 1...Qxg6
- 2.Qa2#
- 1...Rxd1
- 2.Qb1#
- 1...fxg6
- 2.Qxc1#
- 1...Qb8
- 2.Qa2#
- 1...Sd2
- 2.Qa2#
- threat
- 1.Rd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 21
- Sets
- R(c);N_GUARD::QAR2(A),XS(b)
- B(i);CHECK,N_GUARD::QAB1(A),XB(i)
- B(i);N_GUARD::QAB1(A)
- S(b);N_GUARD::QAR1(A),XS(b)
- S(b);N_GUARD::QAR1(A)
- S(b);N_GUARD,XR(C)::QAR1(A)
- S(e);S_CUTR(c)::QAR2(A),XS(b)
- S(e);S_CUTB(i)::QAB1(A)
- P(d);S_CUTR(c)::QAR2(A),XS(b)
- Tries
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- B(i);CHECK,N_GUARD::QAB1(A),XB(i)
- Q(k);XB(D)::R1(C)
- S(b);N_GUARD,XR(C)::QAR1(A)
- P(f);XR(C)::QAR1(A)
- Q(k);::QAR1(A)
- S(b);N_GUARD::QAR1(A),XS(b)
- S(b);N_GUARD::QAR1(A)
- Refutation
- S(e);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- Q(k);XB(D)::QAB1(A)
- P(j);XB(D)::QAB1(A)
- S(b);N_GUARD::QAR1(A)
- S(e);::QAB1(A)
- Refutation
- Q(k);
- Try
- R(C);
- Threat
- DUALS(3)
- Vars
- Q(k);XB(D)::QAB1(A)
- B(i);XR(C)::QAR1(A)
- P(j);XB(D)::QAB1(A)
- S(b);N_GUARD::QAR1(A)
- Refutation
- Q(k);
- Try
- Actual
- R(C);P_PINS(b)
- Threat
- DUALS(3)
- Vars
- B(i);CHECK,N_GUARD::QAB1(A),XB(i)
- Q(k);XB(D)::QAR1(A)
- R(c);N_SPINS(b),XR(C)::QAR1(A)
- P(j);XB(D)::QAR2(A),XS(b)
- Q(k);::QAR1(A)
- S(e);::QAR1(A)
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).