MESON Chess Problem Database
Problem Display
PID: 162420 (1b3r2/3R3b/K1pp4/1Q1Bp3/1B1k3N/2NP2q1/1n1R1P2/2n5 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Suomen Shakki, 1994
#2
10 + 10
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Sb3
- 2.Se2#
- 1...Scxd3
- 2.Se2#
- 1...Sd1
- 2.Qc4#
- 1...Sbxd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...cxd5
- 2.Qxd5#
- 2.Qb6#
- 1...Sa2
- Tries
- 1.Bc5+?
- 1...Kxc3
- 2.Qxb2#
- 2.Qb4#
- 2.Qa5#
- 1...dxc5!
- 1...Kxc3
- 1.Bf3?
- threat
- 2.Qc5#
- 1...cxb5
- 2.Sxb5#
- 1...Ba7
- 2.Rxd6#
- 1...Sb3
- 2.Se2#
- 1...Sa4
- 2.Qc4#
- 1...c5
- 2.Qxc5#
- 1...Bxd3!
- threat
- 1.Bc4?
- threat
- 2.Qc5#
- 1...cxb5
- 2.Sxb5#
- 1...Ba7
- 2.Rxd6#
- 1...Sb3
- 2.Se2#
- 1...c5
- 2.Qxc5#
- 1...Sa4!
- threat
- 1.Be4?
- threat
- 2.Qc5#
- 1...cxb5
- 2.Sxb5#
- 1...Ba7
- 2.Rxd6#
- 1...Sb3
- 2.Se2#
- 1...Sa4
- 2.Qc4#
- 1...c5
- 2.Qxc5#
- 1...Qxd3!
- threat
- 1.Qxc6?
- threat
- 2.Sb5#
- 2.Qb6#
- 1...Qxd3+
- 2.Sb5#
- 1...Bxd3+
- 2.Sb5#
- 1...Qxf2
- 2.Qb6#
- 1...Rxf2
- 2.Qb6#
- 1...Rc8
- 2.Sb5#
- 1...Ba7
- 2.Sb5#
- 1...Bc7
- 2.Sb5#
- 1...Sb3
- 2.Se2#
- 2.Sb5#
- 1...Sa4
- 2.Sb5#
- 2.Qc4#
- 1...Sc4
- 2.Sb5#
- 2.Qxc4#
- 1...e4!
- threat
- 1.Bc5+?
- Keys
- 1.Bf7!
- threat
- 2.Qc5#
- 1...Qxd3
- 2.Sf3#
- 1...Bxd3
- 2.Sf5#
- 1...cxb5
- 2.Sxb5#
- 1...Ba7
- 2.Rxd6#
- 1...Sb3
- 2.Se2#
- 1...Sa4
- 2.Qc4#
- 1...c5
- 2.Qxc5#
- threat
- 1.Bf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 6
- Sets
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(a);N_GUARD,P_SPINS(a),XP(D)::S(C)
- S(b);N_GUARD::QAR1(G)
- S(b);N_GUARD,P_SPINS(b),XP(D)::QAR1(G)
- S(b);N_GUARD::QAR1(G),XS(b)
- Tries
- Try
- B(E);CHECK
- Refutation
- P(g);XB(E)
- Try
- B(H);P_PINP(g)
- Threat
- QAB1(G)
- Vars
- P(f);XQ(G)::S(C),XP(f)
- B(i);N_GUARD::R(J),XP(g)
- S(a);N_GUARD::S(C)
- S(b);N_GUARD::QAR1(G)
- P(f);::QAB1(G),XP(f)
- Refutation
- B(h);P_PINQ(G),P_SPINB(h),XP(D)
- Try
- B(H);P_PINP(g)
- Threat
- QAB1(G)
- Vars
- P(f);XQ(G)::S(C),XP(f)
- B(i);N_GUARD::R(J),XP(g)
- S(a);N_GUARD::S(C)
- P(f);::QAB1(G),XP(f)
- Refutation
- S(b);
- Try
- B(H);P_PINP(g)
- Threat
- QAB1(G)
- Vars
- P(f);XQ(G)::S(C),XP(f)
- B(i);N_GUARD::R(J),XP(g)
- S(a);N_GUARD::S(C)
- S(b);N_GUARD::QAR1(G)
- P(f);::QAB1(G),XP(f)
- Refutation
- Q(c);P_PINQ(G),P_SPINQ(c),XP(D)
- Try
- Q(G);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,P_SPINQ(c),XP(D)::S(C)
- B(h);CHECK,P_SPINB(h),XP(D)::S(C)
- Q(c);XP(B)::QAB(G)
- R(j);XP(B)::QAB(G)
- R(j);::S(C)
- B(i);::S(C)
- Refutation
- P(e);
- Try
- Actual
- B(H);P_PINP(g)
- Threat
- QAB1(G)
- Vars
- Q(c);N_GUARD,P_PINQ(G),P_SPINQ(c),XP(D)::S(F)
- B(h);N_GUARD,P_PINQ(G),P_SPINB(h),XP(D)::S(F)
- P(f);XQ(G)::S(C),XP(f)
- B(i);N_GUARD::R(J),XP(g)
- S(a);N_GUARD::S(C)
- S(b);N_GUARD::QAR1(G)
- P(f);::QAB1(G),XP(f)
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).