MESON Chess Problem Database
Problem Display
PID: 221700 (4n3/8/5N2/b3r2R/3k2P1/QP6/2KP4/8 w - - 0 1)
Kaps, Carl
Funkschach, 1926
#2
7 + 4
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Rd5#
- 2.Qc5#
- 1...Re2
- 2.Rd5#
- 2.Qc5#
- 1...Re3
- 2.Rd5#
- 2.Qc5#
- 1...Re4
- 2.Rd5#
- 2.Qc5#
- 1...Rc5+
- 2.Qxc5#
- 1...Rd5
- 2.Rxd5#
- 1...Re6
- 2.Rd5#
- 2.Qc5#
- 1...Re7
- 2.Rd5#
- 2.Qc5#
- 1...Bb4
- 2.Qxb4#
- 1...Bb6
- 2.Qb4#
- 1...Bc7
- 2.Qb4#
- 1...Bd8
- 2.Qb4#
- 1...Re1
- Tries
- 1.Rxe5?
- threat
- 2.Re4#
- 2.Rd5#
- 2.Qc5#
- 1...Bxd2
- 2.Re4#
- 2.Qc5#
- 1...Sxf6
- 2.Qc5#
- 1...Bb4
- 2.Rd5#
- 1...Bb6
- 2.Re4#
- 2.Rd5#
- 2.Qb2#
- 2.Qa1#
- 1...Sd6
- 2.Rd5#
- 2.Qc5#
- 2.Qxd6#
- 1...Sc7
- 2.Re4#
- 2.Qc5#
- 1...Kxe5!
- threat
- 1.Qb2+?
- 1...Bc3
- 2.Qxc3#
- 1...Kc5!
- 1...Bc3
- 1.Qd6+?
- 1...Rd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Sxd6!
- 1...Rd5
- 1.Qa1+?
- 1...Bc3
- 2.Qxc3#
- 1...Kc5!
- 1...Bc3
- 1.Qa4+?
- 1...Bb4
- 2.Qxb4#
- 1...Kc5!
- 1...Bb4
- 1.Qxa5?
- threat
- 2.Qc3#
- 2.Qb4#
- 2.Qxe5#
- 1...Rc5+
- 2.Qxc5#
- 1...Rxh5
- 2.Qc3#
- 1...Sxf6
- 2.Qxe5#
- 1...Re1
- 2.Rd5#
- 2.Qc3#
- 2.Qb4#
- 2.Qb6#
- 2.Qa4#
- 2.Qc5#
- 2.Qd5#
- 2.Qa7#
- 1...Re2
- 2.Rd5#
- 2.Qc3#
- 2.Qb4#
- 2.Qb6#
- 2.Qa1#
- 2.Qa4#
- 2.Qc5#
- 2.Qd5#
- 2.Qa7#
- 1...Re3
- 2.Rd5#
- 2.Qb4#
- 2.Qb6#
- 2.Qa4#
- 2.Qc5#
- 2.Qd5#
- 2.Qa7#
- 1...Re4
- 2.Rd5#
- 2.Qc3#
- 2.Qb4#
- 2.Qb6#
- 2.Qa1#
- 2.Qa4#
- 2.Qc5#
- 2.Qd5#
- 2.Qa7#
- 1...Rb5
- 2.Qc3#
- 2.Qa1#
- 1...Rd5
- 2.Rxd5#
- 2.Qc3#
- 2.Qb4#
- 2.Qxd5#
- 1...Rf5
- 2.Qc3#
- 1...Rg5
- 2.Qc3#
- 1...Re6
- 2.Rd5#
- 2.Qc3#
- 2.Qb4#
- 2.Qa1#
- 2.Qa4#
- 2.Qc5#
- 2.Qd5#
- 1...Re7
- 2.Rd5#
- 2.Qc3#
- 2.Qb4#
- 2.Qb6#
- 2.Qa1#
- 2.Qa4#
- 2.Qc5#
- 2.Qd5#
- 1...Sd6
- 2.Qc3#
- 2.Qxe5#
- 1...Rxa5!
- threat
- 1.Rxe5?
- Keys
- 1.Qe7!
- threat
- 2.Qxe5#
- 1...Rc5+
- 2.Qxc5#
- 1...Rxh5
- 2.Qe3#
- 1...Rxe7
- 2.Rd5#
- 1...Re1
- 2.Rd5#
- 2.Qc5#
- 1...Re2
- 2.Rd5#
- 2.Qc5#
- 1...Re3
- 2.Rd5#
- 2.Qc5#
- 2.Qxe3#
- 2.dxe3#
- 1...Re4
- 2.Rd5#
- 2.Qc5#
- 2.Qxe4#
- 1...Rb5
- 2.Qe3#
- 2.Qe4#
- 1...Rd5
- 2.Rxd5#
- 2.Qe3#
- 1...Rf5
- 2.Qe3#
- 1...Rg5
- 2.Qe3#
- 1...Re6
- 2.Rd5#
- 2.Qc5#
- 1...Bc7
- 2.Qb4#
- threat
- 1.Qe7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- R(c);CHECK,N_GUARD::QAB1(C),XR(c)
- R(c);OGATE::R1(F),XR(c)
- B(b);N_GUARD::QAR2(C),XB(b)
- B(b);N_GUARD::QAR2(C)
- Tries
- Try
- R(F);XR(c)
- Threat
- DUALS(3)
- Vars
- S(d);XS(G)::QAB1(C)
- B(b);::R1(F)
- Refutation
- K(a);S_FLIGHT,XR(F)
- Try
- Q(C);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB1(C),XB(b)
- Refutation
- K(a);P_SPINR(c),S_FLIGHT
- Try
- Q(C);CHECK
- Refutation
- S(d);XQ(C)
- Try
- Q(C);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB1(C),XB(b)
- Refutation
- K(a);P_SPINR(c),S_FLIGHT
- Try
- Q(C);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAR2(C),XB(b)
- Refutation
- K(a);P_SPINR(c),S_FLIGHT
- Try
- Q(C);XB(b)
- Threat
- DUALS(3)
- Vars
- R(c);CHECK,N_GUARD::QAB1(C),XR(c)
- R(c);XR(F)::QAB1(C)
- S(d);XS(G)::QAB1(C),XR(c)
- R(c);::QAB1(C)
- Refutation
- R(c);XQ(C)
- Try
- Actual
- Q(C);
- Threat
- QAB1(C),XR(c)
- Vars
- R(c);CHECK,N_GUARD::QAB1(C),XR(c)
- R(c);OGATE,XR(F)::QAB1(C)
- R(c);OGATE,XQ(C)::R1(F)
- R(c);OGATE::QAB1(C)
- B(b);N_GUARD::QAR2(C)
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).