MESON Chess Problem Database
Problem Display
PID: 182362 (8/5K2/8/2p1k3/2PR3N/5pr1/3NPP2/Q7 w - - 0 1)
Wyschogrod, Pal
Pesti Naplo, 1906
#2
8 + 4
| 3713 | Snap | 2018 |
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sdxf3#
- 1...Rg2
- 2.Sdxf3#
- 1...Rg4
- 2.Sdxf3#
- 1...Rg5
- 2.Sdxf3#
- 1...Rg6
- 2.Sdxf3#
- 1...Rg8
- 2.Sdxf3#
- 1...fxe2
- 2.f4#
- 1...Rg1
- Tries
- 1.Shxf3+?
- 1...Kf5
- 2.Qb1#
- 1...Rxf3+!
- 1...Kf5
- 1.Qb1?
- threat
- 2.Qe4#
- 1...Kxd4
- 2.Qa1#
- 2.Qb2#
- 1...cxd4
- 2.Qb8#
- 1...Rg4
- 2.Sdxf3#
- 2.Shxf3#
- 1...Rg7+!
- threat
- 1.Qa5?
- threat
- 2.Qxc5#
- 1...Kxd4
- 2.Qa1#
- 1...Rg7+!
- threat
- 1.Qa6?
- threat
- 2.Re4#
- 2.Qd6#
- 2.Qf6#
- 1...Kxd4
- 2.Qa1#
- 2.Qf6#
- 1...cxd4
- 2.Qf6#
- 1...Rg4
- 2.Sdxf3#
- 2.Qd6#
- 2.Qf6#
- 1...Rg6
- 2.Sdxf3#
- 2.Re4#
- 1...Rg7+!
- threat
- 1.Qa7?
- threat
- 2.Qxc5#
- 1...Kxd4
- 2.Qa1#
- 1...cxd4
- 2.Qb8#
- 2.Qc7#
- 1...Rg7+!
- threat
- 1.Qa8?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kxd4
- 2.Qa1#
- 1...cxd4
- 2.Qb8#
- 1...Rg4
- 2.Sdxf3#
- 2.Qd5#
- 1...Rg7+!
- threat
- 1.e3?
- threat
- 2.Rd3#
- 2.Rd5#
- 2.Rd7#
- 2.Rd8#
- 1...cxd4
- 2.Qxd4#
- 1...Rg1
- 2.Sdxf3#
- 2.Rd5#
- 1...Rg4
- 2.Sdxf3#
- 2.Rd5#
- 1...Rg7+!
- threat
- 1.fxg3?
- threat
- 2.Sdxf3#
- 2.Rd3#
- 2.Rd5#
- 2.Rd7#
- 2.Rd8#
- 1...fxe2
- 2.Sdf3#
- 2.Rd3#
- 2.Rd5#
- 2.Rd7#
- 2.Rd8#
- 1...f2
- 2.Sdf3#
- 2.Rd3#
- 2.Rd5#
- 2.Rd7#
- 2.Rd8#
- 1...cxd4!
- threat
- 1.Shxf3+?
- Keys
- 1.Qg1!
- 1...Rg7+
- 2.Qxg7#
- 1...Kxd4
- 2.Qa1#
- 1...Rxg1
- 2.Sdxf3#
- 1...fxe2
- 2.f4#
- 1...cxd4
- 2.Qxg3#
- 1...Rg2
- 2.Sdxf3#
- 1...Rh3
- 2.Qg7#
- 1...Rg4
- 2.Sdxf3#
- 1...Rg5
- 2.Sdxf3#
- 1...Rg6
- 2.Sdxf3#
- 1...Rg8
- 2.Sdxf3#
- 1...Rg7+
- 1.Qg1!
Anticipated by 53370(1894)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::S(B),XP(a)
- P(a);OGATE,XP(C)::P(D)
- Tries
- Try
- S(G);CHECK,XP(a)
- Vars
- K(d);P-FLIGHT::QAB(A)
- Refutation
- R(b);CHECK,XS(G)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- P(c);SBLOCK,XR(F)::QAB(A)
- Refutation
- R(b);CHECK
- Try
- Q(A);P_PINP(c)
- Threat
- QAR2(A),XP(c)
- Vars
- K(d);N_SPINP(c),OGATEB,S_FLIGHT,XR(F)::QAB(A)
- Refutation
- R(b);CHECK
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- P(c);SBLOCK,XR(F)::QAB1(A)
- Refutation
- R(b);CHECK
- Try
- Q(A);
- Threat
- QAR2(A),XP(c)
- Vars
- K(d);OGATEB,P_SPINP(c),S_FLIGHT,XR(F)::QAB(A)
- Refutation
- R(b);CHECK
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(d);OGATEB,S_FLIGHT,XR(F)::QAB(A)
- P(c);SBLOCK,XR(F)::QAB(A)
- Refutation
- R(b);CHECK
- Try
- P(C);
- Threat
- DUALS(4)
- Vars
- P(c);OGATE,P_SPINP(c),XR(F)::QAB1(A),XP(c)
- Refutation
- R(b);CHECK
- Try
- P(D);XR(b)
- Threat
- DUALS(5)
- Refutation
- P(c);P_SPINP(c),XR(F)
- Try
- Actual
- Q(A);
- Vars
- R(b);CHECK,OGATE::QAB(A),XR(b)
- K(d);OGATEB,S_FLIGHT,XR(F)::QAB(A)
- R(b);N_GUARD,XQ(A)::S(B),XP(a)
- P(a);OGATE,XP(C)::P(D)
- P(c);SBLOCK,XR(F)::QAB(A),XR(b)
- R(b);N_GUARD::S(B),XP(a)
- R(b);OGATE::QAB(A)
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).