MESON Chess Problem Database
Problem Display
PID: 245770 (2NK4/BpN5/2bppp2/n7/2k5/1Rbr2Q1/2PP1n2/5q2 w - - 0 1)
Wrobel, Marian
Parallele 50, 1948
#2
8 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxd2
- 2.Qxc3#
- 1...Re3
- 2.Sxd6#
- 1...Rf3
- 2.Sxd6#
- 1...Rxg3
- 2.Sxd6#
- 1...Rd4
- 2.Qxc3#
- 1...Rd5
- 2.Qxc3#
- 1...Bd4
- 2.Sxd6#
- 1...Bd5
- 2.Sxd6#
- 1...d5
- 2.Sd6#
- 1...Rxd2
- Tries
- 1.Sb6+?
- 1...Kc5
- 2.Sxe6#
- 1...Kd4!
- 1...Kc5
- 1.Rxc3+?
- 1...Rxc3
- 2.Qxc3#
- 1...Kb4!
- 1...Rxc3
- 1.Qxd3+?
- 1...Sxd3
- 2.Sxd6#
- 1...Qxd3!
- 1...Sxd3
- 1.Qe3?
- threat
- 2.Sb6#
- 1...Rxe3
- 2.Sxd6#
- 1...Rd4
- 2.Qxc3#
- 1...Bd4
- 2.Sxd6#
- 1...b6
- 2.Sxb6#
- 1...Sxb3!
- threat
- 1.Sb6+?
- Keys
- 1.Qxd6!
- threat
- 2.Sb6#
- 1...Rxd6+
- 2.Sxd6#
- 1...Rd5
- 2.Rxc3#
- 1...Bd4
- 2.Rb4#
- 2.Qb4#
- 1...Bd5
- 2.Qc5#
- 1...b6
- 2.Sxb6#
- threat
- 1.Qxd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(d);OGATE,XP(B)::QAR1(D),XB(c)
- R(d);N_GUARD::S(G),XP(h)
- R(d);N_GUARD,XQ(D)::S(G),XP(h)
- R(d);OGATE::QAR1(D),XB(c)
- B(c);S_CUTR(d)::S(G),XP(h)
- B(g);S_CUTR(d)::S(G),XP(h)
- P(h);S_CUTR(d)::S(G)
- Tries
- Try
- S(G);CHECK
- Vars
- K(e);P-FLIGHT::S(F),XP(i)
- Refutation
- K(e);P-FLIGHT
- Try
- R(C);CHECK,XB(c)
- Vars
- R(d);OGATE,XR(C)::QAR1(D),XR(d)
- Refutation
- K(e);P-FLIGHT
- Try
- Q(D);CHECK,XR(d)
- Vars
- S(b);XQ(D)::S(G),XP(h)
- Refutation
- Q(a);XQ(D)
- Try
- Q(D);
- Threat
- S(G)
- Vars
- R(d);N_GUARD,XQ(D)::S(G),XP(h)
- R(d);OGATE::QAR1(D),XB(c)
- B(c);S_CUTR(d)::S(G),XP(h)
- P(k);::S(G),XP(k)
- Refutation
- S(f);XR(C)
- Try
- Actual
- Q(D);P_SPINQ(D),XP(h)
- Threat
- S(G)
- Vars
- R(d);CHECK,XQ(D)::S(G),XR(d)
- R(d);N_GUARD::R1(C),XB(c)
- B(g);N_PINQ(D)::QAR1(D)
- P(k);::S(G),XP(k)
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).