MESON Chess Problem Database
Problem Display
PID: 235227 (7q/3pP1pb/1N2Q3/n6r/P1p1p2p/Kpk1Bp2/n2RpN2/1B6 w - - 0 1)
Heyl, Peter
Schach, 2006
#2
9 + 14
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Sxd5#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Sxe4#
- 1...Rh6
- 2.Sd5#
- 2.Qe5#
- 1...Bf5
- 2.Sd5#
- 2.Qe5#
- 1...Bg8
- 2.Sxe4#
- 1...Sc6
- 2.Qxc4#
- 1...Sb7
- 2.Qxc4#
- 1...e1S
- 2.Sd1#
- 1...e1B
- 2.Sd1#
- 1...b2
- 2.Rc2#
- 1...g5
- 2.Sd5#
- 1...g6
- 2.Sxe4#
- 1...Rd5
- Tries
- 1.Rxe2?
- threat
- 2.Sd1#
- 1...Rd5
- 2.Sxd5#
- 1...fxe2!
- threat
- 1.Rd5?
- threat
- 2.Bd2#
- 1...Rxd5
- 2.Sxd5#
- 1...e1B
- 2.Sd1#
- 1...e1Q!
- threat
- 1.Rd6?
- threat
- 2.Bd2#
- 1...e1B
- 2.Sd1#
- 1...Rd5
- 2.Sxd5#
- 1...e1Q!
- threat
- 1.Rxd7?
- threat
- 2.Bd2#
- 1...e1B
- 2.Sd1#
- 1...Rd5
- 2.Sxd5#
- 1...e1Q!
- threat
- 1.Qd5?
- threat
- 2.Qd4#
- 1...Rxd5
- 2.Sxd5#
- 1...Sc6
- 2.Qxc4#
- 1...g6
- 2.Sxe4#
- 1...g5!
- threat
- 1.Qf5?
- threat
- 2.Sxe4#
- 2.Sd5#
- 1...Rxf5
- 2.Sxe4#
- 1...Bxf5
- 2.Sd5#
- 1...Qg8
- 2.Sxe4#
- 1...Bg8
- 2.Sxe4#
- 1...Sb4
- 2.Sxe4#
- 1...d5
- 2.Sxd5#
- 1...Qa8!
- threat
- 1.Qxe4?
- threat
- 2.Qd4#
- 1...Bxe4
- 2.Sxe4#
- 1...Rd5
- 2.Sxd5#
- 1...Sc6
- 2.Qxc4#
- 1...g5
- 2.Sd5#
- 1...g6!
- threat
- 1.Qd6?
- threat
- 2.Qd4#
- 1...Rd5
- 2.Sxd5#
- 1...g5
- 2.Sd5#
- 1...g6
- 2.Sxe4#
- 1...Sc6!
- threat
- 1.Qf6+?
- 1...Re5
- 2.Sd5#
- 2.Qxe5#
- 1...gxf6!
- 1...Re5
- 1.Rxe2?
- Keys
- 1.Rd1!
- threat
- 2.Bd4#
- 1...exd1Q
- 2.Sxd1#
- 1...exd1S
- 2.Sxd1#
- 1...exd1B
- 2.Sxd1#
- 1...exd1R
- 2.Sxd1#
- 1...Rd5
- 2.Sxd5#
- 1...Sc6
- 2.Qxc4#
- 1...g5
- 2.Sd5#
- 1...g6
- 2.Sxe4#
- threat
- 1.Rd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- R(j);N_GUARD::S(G),XR(j)
- R(j);N_GUARD::QAB(H),XR(j)
- R(j);S_CUTB(m)::S(C),XP(g)
- B(m);N_GUARD::S(C),XP(g)
- S(i);N_GUARD::QAR1(H),XP(f)
- P(b);N_GUARD::S(C)
- P(c);N_GUARD::R1(B)
- P(l);S_CUTR(j)::S(G)
- P(l);S_CUTB(m)::S(C),XP(g)
- Tries
- Try
- R(B);XP(b)
- Threat
- S(C)
- Vars
- R(j);N_GUARD::S(G),XR(j)
- Refutation
- P(e);XR(B)
- Try
- R(B);
- Threat
- B(E)
- Vars
- R(j);XR(B)::S(G),XR(j)
- P(b);N_GUARD::S(C)
- Refutation
- P(b);
- Try
- R(B);
- Threat
- B(E)
- Vars
- P(b);N_GUARD::S(C)
- R(j);N_GUARD::S(G),XR(j)
- Refutation
- P(b);
- Try
- R(B);XP(k)
- Threat
- B(E)
- Vars
- P(b);N_GUARD::S(C)
- R(j);N_GUARD::S(G),XR(j)
- Refutation
- P(b);
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- R(j);XQ(H)::S(G),XR(j)
- S(i);N_GUARD::QAR1(H),XP(f)
- P(l);S_CUTB(m)::S(C),XP(g)
- Refutation
- P(l);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(j);XQ(H)::S(C),XP(g)
- B(m);XQ(H)::S(G)
- Q(n);::S(C),XP(g)
- B(m);::S(C),XP(g)
- S(a);::S(C),XP(g)
- P(k);::S(G),XP(k)
- Refutation
- Q(n);
- Try
- Q(H);XP(g)
- Threat
- QAB1(H)
- Vars
- B(m);XQ(H)::S(C),XB(m)
- R(j);N_GUARD::S(G),XR(j)
- S(i);N_GUARD::QAR1(H),XP(f)
- P(l);S_CUTR(j)::S(G)
- Refutation
- P(l);
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- R(j);N_GUARD::S(G),XR(j)
- P(l);S_CUTR(j)::S(G)
- P(l);S_CUTB(m)::S(C),XP(g)
- Refutation
- S(i);
- Try
- Q(H);CHECK
- Refutation
- P(l);XQ(H)
- Try
- Actual
- R(B);
- Threat
- B(E)
- Vars
- P(b);XR(B)::S(C),XQ(b)
- P(b);XR(B)::S(C),XS(b)
- P(b);XR(B)::S(C),XB(b)
- P(b);XR(B)::S(C),XR(b)
- R(j);N_GUARD::S(G),XR(j)
- S(i);N_GUARD::QAR1(H),XP(f)
- P(l);S_CUTR(j)::S(G)
- P(l);S_CUTB(m)::S(C),XP(g)
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).