MESON Chess Problem Database
Problem Display
PID: 262535 (1N4B1/pN1R4/K2Br2p/p2kq1bR/2r2P2/1Q1b1P2/2P3p1/8 w - - 0 1)
Shanshin, Valery Yurevich
3rd Prize, SuperProblem, 2017
#2
11 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Qxd3#
- 1...Qxd6+
- 2.Rxd6#
- 1...Kd4
- Tries
- 1.Kb5?
- threat
- 2.Bxe5#
- 1...Kd4+
- 2.Bc5#
- 1...Qxf4
- 2.Bxf4#
- 1...Qxd6
- 2.Rxd6#
- 1...Qa1
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qb2
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qc3
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qd4
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qf6
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qg7
- 2.Be7#
- 1...Qh8
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qe1
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qe2
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qe3
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qe4
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qf5
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Be7
- 2.Bxe7#
- 1...a6+!
- threat
- 1.Qxd3+?
- 1...Rd4
- 2.Qb5#
- 2.c4#
- 1...Qd4!
- 1...Rd4
- 1.Kb5?
- Keys
- 1.Kxa5!
- threat
- 2.Bxe5#
- 1...Kd4+
- 2.Bc5#
- 1...Qa1+
- 2.Ba3#
- 1...Qc3+
- 2.Bb4#
- 1...Qe1+
- 2.Bb4#
- 1...Bd8+
- 2.Bc7#
- 1...Qxf4
- 2.Bxf4#
- 1...Qxd6
- 2.Rxd6#
- 1...Qb2
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qd4
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qf6
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qg7
- 2.Be7#
- 1...Qh8
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qe2
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qe3
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qe4
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Qf5
- 2.Ba3#
- 2.Bb4#
- 2.Bc5#
- 2.Be5#
- 2.Bc7#
- 2.Be7#
- 2.Bf8#
- 1...Be7
- 2.Bxe7#
- threat
- 1.Kxa5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- K(e);N_SPINR(c),P-FLIGHT,S_CUTQ(f),S_CUTR(c)::QAR1(B),XB(b)
- Q(f);CHECK,OGATE,P_SPINB(g),P_SPINQ(f),XB(G)::R1(I),XQ(f)
- Tries
- Try
- K(F);N_SPINB(G),S_FLIGHT
- Threat
- R(I)+B(G),XQ(f)
- Vars
- K(e);CHECK,N_SPINR(c),P-FLIGHT::R(I)+B(G),DCHECK
- Q(f);OGATE,P_SPINB(g),XP(D)::R(I)+B(G),XQ(f)
- Q(f);OGATE,P_SPINB(g),P_SPINQ(f),XB(G)::R1(I),XQ(f)
- Q(f);N_GUARD,P_SPINB(g)::R(I)+B(G)
- B(g);P_SPINQ(f)::R(I)+B(G),XB(g)
- Refutation
- P(j);CHECK
- Try
- Q(B);CHECK,N_PINR(c),P_PINR(h),XB(b)
- Refutation
- Q(f);P_SPINB(g),P_SPINQ(f)
- Try
- Actual
- K(F);N_SPINB(G),P-FLIGHT,XP(d)
- Threat
- R(I)+B(G),XQ(f)
- Vars
- K(e);CHECK,N_SPINR(c),P-FLIGHT::R(I)+B(G),DCHECK
- Q(f);CHECK,N_GUARD,P_SPINB(g)::R(I)+B(G)
- B(g);CHECK,P_SPINQ(f)::R(I)+B(G)
- Q(f);OGATE,P_SPINB(g),XP(D)::R(I)+B(G),XQ(f)
- Q(f);OGATE,P_SPINB(g),P_SPINQ(f),XB(G)::R1(I),XQ(f)
- Q(f);N_GUARD,P_SPINB(g)::R(I)+B(G)
- B(g);P_SPINQ(f)::R(I)+B(G),XB(g)
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).