MESON Chess Problem Database
Problem Display
PID: 263176 (2N5/8/n1B1p2n/1PkrR3/2p1p2r/K4P1p/2Q2N2/B7 w - - 0 1)
Zabirokhin, Piotr
SuperProblem, 2021
#2
9 + 9
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rh5
- 2.Sxe4#
- 1...Sg4
- 2.Sxe4#
- 1...c3
- 2.Qxc3#
- 1...exf3
- 2.Sd3#
- 1...e3
- 2.Sd3#
- 1...Rh5
- Tries
- 1.Qxe4?
- threat
- 2.Bd4#
- 1...Rxe4
- 2.Sxe4#
- 1...c3
- 2.Sd3#
- 1...Sf5!
- threat
- 1.Qc1?
- threat
- 2.Qe3#
- 1...exf3
- 2.Sd3#
- 1...c3
- 2.Qxc3#
- 1...Sg4
- 2.Sxe4#
- 1...e3
- 2.Sd3#
- 1...Sf5!
- threat
- 1.Qc3?
- threat
- 2.Qd4#
- 2.Qe3#
- 1...exf3
- 2.Sd3#
- 1...Sg4
- 2.Sxe4#
- 2.Qd4#
- 1...e3
- 2.Sd3#
- 1...Sf5!
- threat
- 1.fxe4?
- threat
- 2.Sd3#
- 1...c3
- 2.Qxc3#
- 1...Sb4!
- threat
- 1.Qxe4?
- Keys
- 1.Rxe4!
- threat
- 2.Qxc4#
- 1...Rd3+
- 2.Sxd3#
- 1...Rxe4
- 2.Sxe4#
- 1...Rd4
- 2.Bxd4#
- 1...c3
- 2.Qxc3#
- threat
- 1.Rxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(d);N_GUARD::S(C),XP(c)
- S(i);S_CUTR(d)::S(C),XP(c)
- P(b);OGATEB::QAR2(B),XP(b)
- P(c);N_GUARD,XP(E)::S(C)
- P(c);N_GUARD::S(C)
- Tries
- Try
- Q(B);N_PINP(b),XP(c)
- Threat
- B(A)
- Vars
- R(d);XQ(B)::S(C),XR(d)
- P(b);N_GUARD::S(C)
- Refutation
- S(i);
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- P(c);N_GUARD,XP(E)::S(C)
- P(b);OGATEB::QAR2(B),XP(b)
- S(i);S_CUTR(d)::S(C),XP(c)
- P(c);N_GUARD::S(C)
- Refutation
- S(i);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(c);N_GUARD,XP(E)::S(C)
- P(c);N_GUARD::S(C)
- Refutation
- S(i);
- Try
- P(E);XP(c)
- Threat
- S(C)
- Vars
- P(b);OGATEB::QAR2(B),XP(b)
- Refutation
- S(g);
- Try
- Actual
- R(G);N_PINR(f),XP(c)
- Threat
- QAR1(B),XP(b)
- Vars
- R(f);CHECK,N_GUARD::S(C),XR(f)
- R(d);XR(G)::S(C),XR(d)
- R(f);N_GUARD::B(A),XR(f)
- P(b);OGATEB::QAR2(B),XP(b)
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).