MESON Chess Problem Database
Problem Display
PID: 270644 (2K1k3/2prPR2/8/1Q6/8/8/3p4/8 w - - 0 1)
Nagovitsin, Eduard Nikolaevich
Shakhmatnaya kompozitsiya, 2020
#2
4 + 4
| 5454 | Near Snap | 2023 |
SOLUTION
- SOUND
- Tries
- 1.Rg7?
- threat
- 2.Qxd7#
- 2.Qh5#
- 1...d1B
- 2.Qxd7#
- 1...d1R
- 2.Qh5#
- 1...c5
- 2.Qxd7#
- 1...c6
- 2.Qh5#
- 1...d1Q!
- threat
- 1.Rh7?
- threat
- 2.Qxd7#
- 2.Qh5#
- 1...d1B
- 2.Qxd7#
- 1...d1R
- 2.Qh5#
- 1...c5
- 2.Qxd7#
- 1...c6
- 2.Qh5#
- 1...d1Q!
- threat
- 1.Qe2?
- threat
- 2.Rf8#
- 1...Rd8+
- 2.exd8S#
- 1...Rxe7
- 2.Qxe7#
- 1...Kxf7!
- threat
- 1.Rg7?
- Keys
- 1.Qe5!
- threat
- 2.Rf8#
- 1...Rd8+
- 2.exd8S#
- 1...Kxf7
- 2.e8Q#
- 1...Rxe7
- 2.Qxe7#
- threat
- 1.Qe5!
Anticipated by 161862(1996)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- P(a);::QAB1(A),XR(c)
- P(a);::QAB(A)
- P(b);::QAB1(A),XR(c)
- P(b);N_SPINR(c)::QAB(A)
- Refutation
- P(a);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- P(a);::QAB1(A),XR(c)
- P(a);::QAB(A)
- P(b);::QAB1(A),XR(c)
- P(b);N_SPINR(c)::QAB(A)
- Refutation
- P(a);
- Try
- Q(A);N_PINR(c)
- Threat
- R1(C)
- Vars
- R(c);CHECK,OGATE::PXR(c)=S
- R(c);OGATE,P_SPINR(c),XP(B)::QAR1(A),XR(c)
- Refutation
- K(d);S_FLIGHT,XR(C)
- Try
- Actual
- Q(A);N_PINR(c)
- Threat
- R1(C)
- Vars
- R(c);CHECK,OGATE::PXR(c)=S
- K(d);OGATE,S_FLIGHT,XR(C)::P=Q
- R(c);OGATE,P_SPINR(c),XP(B)::QAR1(A),XR(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).