MESON Chess Problem Database
Problem Display
PID: 178716 (5b1K/p3p1p1/B3R1P1/5p1Q/8/5n2/N2k1P2/2Rb4 w - - 0 1)
Maleika, Gerhard
2nd Comm., Problem Observer Block-Threat Ty., 2009-2010
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Bc2
- 2.Re2#
- 1...Be2
- 2.Rxe2#
- 1...Bb3
- 2.Re2#
- 1...Ba4
- 2.Re2#
- 1...Se1
- 2.Qxd1#
- 1...Sg1
- 2.Qxd1#
- 1...Sh2
- 2.Qxd1#
- 1...Sd4
- 2.Qxd1#
- 1...Sh4
- 2.Qxd1#
- 1...Se5
- 2.Qxd1#
- 1...Sg5
- 2.Qxd1#
- 1...f4
- 2.Qa5#
- 1...Bc2
- Tries
- 1.Kh7?
- 1...Se5
- 2.Qxd1#
- 1...Bc2
- 2.Re2#
- 1...Be2
- 2.Rxe2#
- 1...Bb3
- 2.Re2#
- 1...Ba4
- 2.Re2#
- 1...Se1
- 2.Qxd1#
- 1...Sg1
- 2.Qxd1#
- 1...Sh2
- 2.Qxd1#
- 1...Sd4
- 2.Qxd1#
- 1...Sh4
- 2.Qxd1#
- 1...f4
- 2.Qa5#
- 1...Sg5+!
- 1...Se5
- 1.Kg8?
- 1...Se5
- 2.Qxd1#
- 1...Bc2
- 2.Re2#
- 1...Be2
- 2.Rxe2#
- 1...Ba4
- 2.Re2#
- 1...Se1
- 2.Qxd1#
- 1...Sg1
- 2.Qxd1#
- 1...Sh2
- 2.Qxd1#
- 1...Sd4
- 2.Qxd1#
- 1...Sh4
- 2.Qxd1#
- 1...Sg5
- 2.Qxd1#
- 1...f4
- 2.Qa5#
- 1...Bb3!
- 1...Se5
- 1.Re1?
- threat
- 2.Rexd1#
- 1...Sxe1
- 2.Qxd1#
- 1...Bc2
- 2.Re2#
- 1...Be2
- 2.Rxe2#
- 1...Bb3
- 2.Re2#
- 1...Ba4
- 2.Re2#
- 1...Kxe1!
- threat
- 1.Rxe7?
- 1...Se5
- 2.Qxd1#
- 1...Bc2
- 2.Re2#
- 1...Be2
- 2.Rxe2#
- 1...Bb3
- 2.Re2#
- 1...Ba4
- 2.Re2#
- 1...Se1
- 2.Qxd1#
- 1...Sg1
- 2.Qxd1#
- 1...Sh2
- 2.Qxd1#
- 1...Sd4
- 2.Qxd1#
- 1...Sh4
- 2.Qxd1#
- 1...Sg5
- 2.Qxd1#
- 1...f4
- 2.Qa5#
- 1...Bxe7!
- 1...Se5
- 1.Qxf3?
- threat
- 2.Qxd1#
- 2.Qd5#
- 2.Qc3#
- 2.Qd3#
- 2.Qe3#
- 2.Qf4#
- 1...Bc2
- 2.Re2#
- 2.Qe2#
- 2.Qc3#
- 2.Qe3#
- 2.Qf4#
- 1...Be2
- 2.Rxe2#
- 2.Qxe2#
- 2.Qc3#
- 2.Qe3#
- 2.Qf4#
- 1...Bb3
- 2.Re2#
- 2.Qe2#
- 2.Qc3#
- 2.Qd3#
- 2.Qe3#
- 2.Qf4#
- 1...Ba4
- 2.Re2#
- 2.Qe2#
- 2.Qd5#
- 2.Qc3#
- 2.Qd3#
- 2.Qe3#
- 2.Qf4#
- 1...f4
- 2.Qxd1#
- 2.Qd5#
- 2.Qc3#
- 2.Qd3#
- 2.Qxf4#
- 1...Bxf3!
- threat
- 1.Qg4?
- threat
- 2.Qb4#
- 2.Qf4#
- 1...Se5
- 2.Qxd1#
- 2.Qb4#
- 1...Sd4
- 2.Qxd1#
- 2.Qxd4#
- 2.Qf4#
- 1...f4
- 2.Qxf4#
- 1...fxg4!
- threat
- 1.Qh3?
- 1...Se5
- 2.Qc3#
- 2.Qe3#
- 1...Bc2
- 2.Re2#
- 1...Be2
- 2.Rxe2#
- 1...Bb3
- 2.Re2#
- 1...Ba4
- 2.Re2#
- 1...Se1
- 2.Qc3#
- 2.Qe3#
- 1...Sg1
- 2.Qc3#
- 2.Qd3#
- 2.Qe3#
- 1...Sh2
- 2.Qc3#
- 2.Qd3#
- 2.Qe3#
- 1...Sd4
- 2.Qc3#
- 2.Qd3#
- 2.Qe3#
- 1...Sh4
- 2.Qc3#
- 2.Qd3#
- 2.Qe3#
- 1...Sg5
- 2.Qc3#
- 2.Qd3#
- 2.Qe3#
- 1...f4!
- 1...Se5
- 1.Qh4?
- threat
- 2.Qb4#
- 2.Qf4#
- 1...Se5
- 2.Qb4#
- 1...f4
- 2.Qxf4#
- 1...Sd4
- 2.Qxd4#
- 2.Qf4#
- 1...Sxh4!
- threat
- 1.Qxf5?
- threat
- 2.Qd3#
- 2.Qf4#
- 2.Qa5#
- 1...Bc2
- 2.Re2#
- 2.Qxc2#
- 2.Qf4#
- 2.Qa5#
- 1...Be2
- 2.Rxe2#
- 2.Qc2#
- 2.Qf4#
- 2.Qa5#
- 1...Se1
- 2.Qf4#
- 2.Qa5#
- 2.Qg5#
- 1...Se5!
- threat
- 1.Qg5+?
- 1...f4
- 2.Qxf4#
- 2.Qa5#
- 1...Sxg5!
- 1...f4
- 1.Kh7?
- Keys
- 1.Qh1!
- threat
- 2.Qxd1#
- 1...Bc2
- 2.Re2#
- 1...Be2
- 2.Rxe2#
- 1...Bb3
- 2.Re2#
- 1...Ba4
- 2.Re2#
- 1...Se1
- 2.Qxe1#
- 1...Sg1
- 2.Qd5#
- threat
- 1.Qh1!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- B(a);N_GUARD::R1(F)
- B(a);N_GUARD::R1(F),XB(a)
- S(c);OGATE::QAR1(D),XB(a)
- P(d);OGATE::QAB(D)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- S(c);OGATE::QAR1(D),XB(a)
- B(a);N_GUARD::R1(F)
- B(a);N_GUARD::R1(F),XB(a)
- P(d);OGATE::QAB(D)
- Refutation
- S(c);CHECK
- Try
- K(H);P-FLIGHT
- Vars
- S(c);OGATE::QAR1(D),XB(a)
- B(a);N_GUARD::R1(F)
- B(a);N_GUARD::R1(F),XB(a)
- P(d);OGATE::QAB(D)
- Refutation
- B(a);P_PINR(F)
- Try
- R(F);
- Threat
- R1(F),XB(a)
- Vars
- S(c);OGATE,XR(F)::QAR1(D),XB(a)
- B(a);N_GUARD::R1(F)
- B(a);N_GUARD::R1(F),XB(a)
- Refutation
- K(b);P_SPINB(a),S_FLIGHT,XR(F)
- Try
- R(F);XP(f)
- Vars
- S(c);OGATE::QAR1(D),XB(a)
- B(a);N_GUARD::R1(F)
- B(a);N_GUARD::R1(F),XB(a)
- P(d);OGATE::QAB(D)
- Refutation
- B(h);XR(F)
- Try
- Q(D);XS(c)
- Threat
- DUALS(6)
- Refutation
- B(a);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(d);::QAB(D),XP(d)
- Refutation
- P(d);XQ(D)
- Try
- Q(D);
- Vars
- B(a);N_GUARD::R1(F)
- B(a);N_GUARD::R1(F),XB(a)
- Refutation
- P(d);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(c);::QAB(D)
- P(d);::QAB(D),XP(d)
- Refutation
- S(c);XQ(D)
- Try
- Q(D);XP(d)
- Threat
- DUALS(3)
- Refutation
- S(c);
- Try
- Q(D);CHECK
- Refutation
- S(c);XQ(D)
- Try
- Actual
- Q(D);
- Threat
- QAR1(D),XB(a)
- Vars
- B(a);N_GUARD::R1(F)
- B(a);N_GUARD::R1(F),XB(a)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);OGATE::QAR(D)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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