MESON Chess Problem Database
Problem Display
PID: 59570 (2BK4/r1P3B1/Np6/3kP3/7Q/2R1p3/b2N3n/1r5q w - - 0 1)
Maleika, Gerhard
The Problemist, 2005
#2
9 + 8
| 136 | Problem Observer | 2006 |
| 56 | The Problemist | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Qxe4#
- 1...Qc1
- 2.Qe4#
- 1...Qd1
- 2.Qe4#
- 1...Qe1
- 2.Qe4#
- 1...Qf1
- 2.Qe4#
- 1...Qg1
- 2.Qe4#
- 1...Ra1
- 2.Sb4#
- 1...Rc1
- 2.Sb4#
- 1...Rd1
- 2.Sb4#
- 1...Re1
- 2.Sb4#
- 1...Rf1
- 2.Sb4#
- 1...Rg1
- 2.Sb4#
- 1...Rb3
- 2.Qc4#
- 1...Rb4
- 2.Sxb4#
- 1...Rxc7
- 2.Sxc7#
- 1...Bb3
- 2.Sb4#
- 1...Bc4
- 2.Qxc4#
- 1...Sf3
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...Qe4
- Tries
- 1.Ke7?
- threat
- 2.Be6#
- 1...Rxc7+
- 2.Sxc7#
- 1...Qe4
- 2.Qxe4#
- 1...Bc4
- 2.Qxc4#
- 1...Sg4!
- threat
- 1.Ke8?
- threat
- 2.Qd8#
- 1...Rxc7
- 2.Sxc7#
- 1...Bc4
- 2.Qxc4#
- 1...exd2!
- threat
- 1.Bb7+?
- 1...Ke6
- 2.Qf6#
- 1...Rxb7!
- 1...Ke6
- 1.Rc4?
- threat
- 2.Qd4#
- 1...Bxc4
- 2.Qxc4#
- 1...Qe4
- 2.Qxe4#
- 1...Sf3
- 2.Qe4#
- 1...Sg4!
- threat
- 1.Qa4?
- threat
- 2.Rd3#
- 2.Qd7#
- 1...Rxa6
- 2.Qd7#
- 1...Rxc7
- 2.Sxc7#
- 2.Rd3#
- 1...exd2
- 2.Rd3#
- 1...Rb4
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- 2.Qxc4#
- 1...Qe4
- 2.Qd7#
- 2.Qxe4#
- 1...Qf1
- 2.Qd7#
- 2.Qe4#
- 1...Rb3
- 2.Qd7#
- 2.Qc4#
- 1...Sf3
- 2.Qd7#
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...Rb5!
- threat
- 1.Qg4?
- threat
- 2.Be6#
- 2.Qd7#
- 1...Rxc7
- 2.Sxc7#
- 2.Be6#
- 1...exd2
- 2.Be6#
- 1...Qe4
- 2.Qd7#
- 2.Qxe4#
- 1...Bc4
- 2.Qd7#
- 2.Qxc4#
- 1...Ra8
- 2.Qd7#
- 1...Sxg4!
- threat
- 1.Ke7?
- Keys
- 1.Kd7!
- threat
- 2.Rd3#
- 1...Rxc7+
- 2.Sxc7#
- 1...Rxa6
- 2.Bb7#
- 1...Qe4
- 2.Qxe4#
- 1...Qf1
- 2.Qe4#
- 1...Rb3
- 2.Qc4#
- 1...Rb4
- 2.Sxb4#
- 1...Bc4
- 2.Qxc4#
- 1...Sf3
- 2.Qe4#
- threat
- 1.Kd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- Q(b);N_GUARD::QAB1(C),XQ(b)
- Q(b);N_GUARD::QAB1(C)
- R(a);N_GUARD::S(E)
- R(a);S_CUTB(c)::QAB1(C)
- R(a);N_GUARD::S(E),XR(a)
- R(h);XP(F)::S(E),XR(h)
- B(c);S_CUTR(a)::S(E)
- B(c);N_GUARD::QAB1(C),XB(c)
- S(d);S_CUTQ(b)::QAB1(C)
- P(g);N_GUARD::R1(B)
- Tries
- Try
- K(I);P_SPINP(F),S_FLIGHT
- Threat
- B(H)
- Vars
- R(h);CHECK,XP(F)::S(E),XR(h)
- Q(b);N_GUARD,N_PINP(F),P_PINP(D)::QAB1(C),XQ(b)
- B(c);N_GUARD::QAB1(C),XB(c)
- Refutation
- S(d);
- Try
- K(I);P-FLIGHT
- Threat
- QAR(C)
- Vars
- R(h);XP(F)::S(E),XR(h)
- B(c);N_GUARD::QAB1(C),XB(c)
- Refutation
- P(e);XS(A)
- Try
- B(H);CHECK
- Vars
- K(f);S_FLIGHT::QAR1(C)
- Refutation
- R(h);XB(H)
- Try
- R(B);
- Threat
- QAR1(C)
- Vars
- B(c);OGATE,XR(B)::QAB1(C),XB(c)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- S(d);S_CUTQ(b)::QAB1(C)
- Refutation
- S(d);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- R(h);XS(E)::QAR2(C)
- P(e);XS(A)::R(B)
- R(a);::QAR2(C)
- P(g);N_GUARD::R1(B)
- Refutation
- R(a);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- P(e);XS(A)::B(H)
- R(h);P_PINB(H)::QAR2(C)
- Refutation
- S(d);XQ(C)
- Try
- Actual
- K(I);P-FLIGHT,P_SPINP(F)
- Threat
- R(B)
- Vars
- R(h);CHECK,XP(F)::S(E),XR(h)
- R(h);N_GUARD,N_PINP(F),XS(E)::B(H)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- Q(b);N_GUARD::QAB1(C)
- R(a);S_CUTB(c)::QAB1(C)
- R(a);N_GUARD::S(E),XR(a)
- B(c);N_GUARD::QAB1(C),XB(c)
- S(d);S_CUTQ(b)::QAB1(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).