MESON Chess Problem Database
Problem Display
PID: 262753 (8/8/6N1/3Q4/3p4/4kPn1/8/4K3 w - - 0 1)
Nagovitsin, Eduard Nikolaevich
Sp. Comm., SuperProblem, 2018
#2
4 + 3
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Qb3#
- 1...Sf1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf5
- 2.Qe4#
- 1...Sh5
- 2.Qe4#
- 1...Kd3
- Tries
- 1.Sf4?
- 1...Se4
- 2.Qxe4#
- 1...Sf1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sf5
- 2.Qe4#
- 1...Sh5
- 2.Qe4#
- 1...d3
- 2.Sg2#
- 1...Kxf4!
- 1...Se4
- 1.Qa2?
- 1...Kd3
- 2.Qb3#
- 1...d3
- 2.Qf2#
- 1...Sf1
- 2.Qe2#
- 1...Sh1
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Se4
- 2.Qe2#
- 1...Sf5
- 2.Qe2#
- 1...Sh5
- 2.Qe2#
- 1...Kxf3!
- 1...Kd3
- 1.Qc4?
- 1...d3
- 2.Qf4#
- 1...Sf1
- 2.Qe2#
- 1...Sh1
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Se4
- 2.Qe2#
- 1...Sf5
- 2.Qe2#
- 1...Sh5
- 2.Qe2#
- 1...Kxf3!
- 1...d3
- 1.Qe6+?
- 1...Kd3
- 2.Qb3#
- 1...Se4
- 2.Qxe4#
- 1...Kxf3!
- 1...Kd3
- 1.Qb7?
- 1...Kd3
- 2.Qb3#
- 1...Se4
- 2.Qxe4#
- 1...Sf1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sf5
- 2.Qe4#
- 1...Sh5
- 2.Qe4#
- 1...d3!
- 1...Kd3
- 1.Qxd4+?
- 1...Kxf3
- 2.Sh4#
- 1...Kxd4!
- 1...Kxf3
- 1.Qf5?
- 1...Se4
- 2.Qxe4#
- 1...d3
- 2.Qf4#
- 1...Sf1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sh5
- 2.Qe4#
- 1...Sxf5!
- 1...Se4
- 1.Sf4?
- Keys
- 1.Sh4!
- 1...Kd3
- 2.Qb3#
- 1...Kf4
- 2.Sg2#
- 1...Sf1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf5
- 2.Qe4#
- 1...Sh5
- 2.Qe4#
- 1...d3
- 2.Sg2#
- 1...Kd3
- 1.Sh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(a);P-FLIGHT,P_SPINP(c)::QAR2(C)
- S(b);N_GUARD::QAR1(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- Tries
- Try
- S(D);
- Vars
- S(b);N_GUARD::QAR1(C),XS(b)
- S(b);N_GUARD::QAR1(C)
- P(c);::S(D)
- Refutation
- K(a);S_FLIGHT,XS(D)
- Try
- Q(C);
- Vars
- K(a);P-FLIGHT,S_CUTP(c)::QAR2(C)
- P(c);SBLOCK::QAB1(C)
- S(b);N_GUARD::QAR1(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- Refutation
- K(a);P-FLIGHT,XP(B)
- Try
- Q(C);
- Vars
- P(c);OGATE,SBLOCK::QAB1(C)
- S(b);N_GUARD::QAR1(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- Refutation
- K(a);P-FLIGHT,XP(B)
- Try
- Q(C);CHECK
- Vars
- K(a);P-FLIGHT,S_CUTP(c)::QAR2(C)
- S(b);N_GUARD,P_SPINS(b)::QAR1(C),XS(b)
- Refutation
- K(a);P-FLIGHT,XP(B)
- Try
- Q(C);
- Vars
- K(a);P-FLIGHT,S_CUTP(c)::QAR2(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- S(b);N_GUARD::QAR1(C)
- Refutation
- P(c);
- Try
- Q(C);CHECK,XP(c)
- Vars
- K(a);N_GUARD,P-FLIGHT,XP(B)::S(D)
- Refutation
- K(a);S_FLIGHT,XQ(C)
- Try
- Q(C);
- Vars
- S(b);N_GUARD::QAR1(C),XS(b)
- P(c);SBLOCK::QAB1(C)
- S(b);N_GUARD::QAR1(C)
- Refutation
- S(b);XQ(C)
- Try
- Actual
- S(D);
- Vars
- K(a);N_GUARD,P-FLIGHT,P_SPINP(c)::QAR2(C)
- K(a);N_GUARD,S_FLIGHT::S(D)
- S(b);N_GUARD::QAR1(C)
- S(b);N_GUARD::QAR1(C),XS(b)
- P(c);::S(D)
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).