MESON Chess Problem Database
Problem Display
PID: 122068 (B1r2R2/3Rp3/2r1N1KB/4p3/2n1k1n1/1QP1p2b/q1p5/6N1 w - - 0 1)
Heinonen, Unto
Source?, 0000
#2
9 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qxc4#
- 1...Qa1
- 2.Qxc2#
- 2.Qxc4#
- 1...Qb2
- 2.Qxc4#
- 1...Qa3
- 2.Qxc2#
- 2.Qxc4#
- 1...Qa5
- 2.Qxc2#
- 2.Qxc4#
- 1...Qa6
- 2.Qxc2#
- 1...Qa7
- 2.Qxc2#
- 1...Qxa8
- 2.Qxc2#
- 1...Rb8
- 2.Bxc6#
- 1...Rd8
- 2.Bxc6#
- 1...Re8
- 2.Bxc6#
- 1...Rxf8
- 2.Bxc6#
- 1...Sd6
- 2.Sc5#
- 1...Sf6
- 2.Sc5#
- 1...Qb1
- Tries
- 1.Sf3?
- threat
- 2.Sg5#
- 1...Sd6
- 2.Sc5#
- 1...e2!
- threat
- 1.Sxh3?
- threat
- 2.Sg5#
- 1...Sd6
- 2.Sc5#
- 1...e2!
- threat
- 1.Rd6?
- threat
- 2.Sc5#
- 2.Sg5#
- 1...Qxa8
- 2.Sg5#
- 2.Qxc2#
- 1...Rxa8
- 2.Sg5#
- 1...Rxf8
- 2.Sc5#
- 2.Bxc6#
- 1...Sxd6
- 2.Sc5#
- 1...e2
- 2.Sc5#
- 1...Qa3
- 2.Sg5#
- 2.Qxc2#
- 2.Qxc4#
- 1...Qa5
- 2.Sg5#
- 2.Qxc2#
- 2.Qxc4#
- 1...Qa7
- 2.Sg5#
- 2.Qxc2#
- 1...Sf6
- 2.Sc5#
- 1...exd6!
- threat
- 1.Rf6?
- threat
- 2.Sc5#
- 2.Sg5#
- 1...Qxa8
- 2.Sg5#
- 2.Qxc2#
- 1...Rxa8
- 2.Sg5#
- 1...Sxf6
- 2.Sc5#
- 1...exf6
- 2.Sc5#
- 1...Sd6
- 2.Sc5#
- 1...e2
- 2.Sc5#
- 1...Qa3
- 2.Sg5#
- 2.Qxc2#
- 2.Qxc4#
- 1...Qa5
- 2.Sg5#
- 2.Qxc2#
- 2.Qxc4#
- 1...Qa7
- 2.Sg5#
- 2.Qxc2#
- 1...Rg8+!
- threat
- 1.Qxa2?
- threat
- 2.Qxc4#
- 2.Qxc2#
- 1...Rxa8
- 2.Qxc2#
- 1...Sd6
- 2.Sc5#
- 1...c1Q
- 2.Qxc4#
- 1...c1S
- 2.Qxc4#
- 1...c1B
- 2.Qb1#
- 2.Qxc4#
- 2.Qc2#
- 1...c1R
- 2.Qxc4#
- 1...Sb2
- 2.Qd5#
- 1...Sd2
- 2.Qd5#
- 2.Qxc2#
- 1...Sa3
- 2.Qd5#
- 1...Sa5
- 2.Qd5#
- 2.Qxc2#
- 1...Sb6
- 2.Qxc2#
- 1...Sf2
- 2.Qxc4#
- 1...Bf1!
- threat
- 1.Qb5?
- threat
- 2.Qd5#
- 1...Qa5
- 2.Qxc4#
- 1...Sd2
- 2.Qd3#
- 1...Sa3
- 2.Qd3#
- 1...Sa5
- 2.Qd3#
- 1...Sb6
- 2.Qd3#
- 1...Sd6
- 2.Sg5#
- 1...Sf6
- 2.Sc5#
- 1...Sb2!
- threat
- 1.Sf3?
- Keys
- 1.Se2!
- threat
- 2.Sg3#
- 1...Rxf8
- 2.Bxc6#
- 1...Sd6
- 2.Sc5#
- 1...Sf6
- 2.Sg5#
- threat
- 1.Se2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- Q(a);N_GUARD::QAR2(B),XS(e)
- Q(a);N_GUARD::QAB(B),XP(b)
- Q(a);N_GUARD,N_SPINR(i),XB(H)::QAB(B),XP(b)
- R(k);N_GUARD::B(H),XR(i)
- R(k);N_GUARD,XR(I)::B(H),XR(i)
- S(e);N_PINS(D)::S(D)
- S(g);N_PINS(D)::S(D)
- Tries
- Try
- S(A);
- Threat
- S(A)
- Vars
- S(e);N_PINS(D)::S(D)
- Refutation
- P(c);
- Try
- S(A);XB(d)
- Threat
- S(A)
- Vars
- S(e);N_PINS(D)::S(D)
- Refutation
- P(c);
- Try
- R(G);N_SPINS(D)
- Threat
- DUALS(2)
- Vars
- R(k);N_SPINR(i),XB(H)::S(D)
- S(e);XR(G)::S(D)
- P(c);::S(D)
- S(g);::S(D)
- Refutation
- P(j);XR(G)
- Try
- R(I);N_SPINS(D)
- Threat
- DUALS(2)
- Vars
- R(k);N_SPINR(i),XB(H)::S(D)
- S(g);XR(I)::S(D)
- P(j);XR(I)::S(D)
- S(e);::S(D)
- P(c);::S(D)
- Refutation
- R(k);CHECK
- Try
- Q(B);XQ(a)
- Threat
- DUALS(2)
- Vars
- R(k);N_SPINR(i),XB(H)::QAB(B),XP(b)
- S(e);N_PINS(D)::S(D)
- P(b);::QAR2(B),XS(e)
- S(e);OGATE::QAB1(B)
- S(e);::QAB(B),XP(b)
- S(g);::QAR2(B),XS(e)
- Refutation
- B(d);
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- Q(a);N_GUARD::QAR2(B),XS(e)
- S(e);OGATE::QAB1(B)
- S(e);N_PINS(D)::S(D)
- S(g);N_PINS(D)::S(D)
- Refutation
- S(e);
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- R(k);N_GUARD,XR(I)::B(H),XR(i)
- S(e);N_PINS(D)::S(D)
- S(g);N_PINS(D)::S(D)
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).