MESON Chess Problem Database
Problem Display
PID: 86230 (6B1/b1pK1N2/3R1B2/2p5/Pnk1p1r1/2PNnQ2/4P3/1R1r4 w - - 0 1)
Baev, Georgy S
Loshinski, Lev Ilich
30 dnei, 1930
#2
11 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qxe4#
- 1...Rg2
- 2.Qxe4#
- 1...Rg3
- 2.Qxe4#
- 1...Rg5
- 2.Qxe4#
- 1...Rg6
- 2.Qxe4#
- 1...Rg7
- 2.Qxe4#
- 1...Rxg8
- 2.Qxe4#
- 1...Sf1
- 2.Sde5#
- 1...Sec2
- 2.Sde5#
- 1...Sg2
- 2.Sde5#
- 1...Sed5
- 2.Sde5#
- 1...Sf5
- 2.Sde5#
- 1...cxd6
- 2.Sxd6#
- 1...Rg1
- Tries
- 1.Sg5+?
- 1...Sed5
- 2.Se5#
- 1...Sbd5!
- 1...Sed5
- 1.Sh6+?
- 1...Rxg8
- 2.Qxe4#
- 1...Sed5
- 2.Se5#
- 1...Sbd5!
- 1...Rxg8
- 1.Sd8+?
- 1...Rxg8
- 2.Qxe4#
- 1...Sed5
- 2.Se5#
- 1...Sbd5!
- 1...Rxg8
- 1.Sh8+?
- 1...Rxg8
- 2.Qxe4#
- 1...Sed5
- 2.Se5#
- 1...Sbd5!
- 1...Rxg8
- 1.Bd4?
- threat
- 2.Sde5#
- 2.Sfe5#
- 1...Rxb1
- 2.Sfe5#
- 1...Rxd3
- 2.Se5#
- 1...Sxd3
- 2.Se5#
- 1...exd3
- 2.Se5#
- 1...cxd6
- 2.Sfe5#
- 2.Sxd6#
- 1...Rg5
- 2.Sfe5#
- 1...Rg7
- 2.Se5#
- 1...Sc6
- 2.Sfe5#
- 1...cxd4!
- threat
- 1.Ra6?
- threat
- 2.Sd6#
- 1...Kd5
- 2.Sg5#
- 1...Rxg8
- 2.Qxe4#
- 1...Rg7
- 2.Qxe4#
- 1...Sed5
- 2.Sde5#
- 1...Sbd5!
- threat
- 1.Rc6?
- threat
- 2.Sd6#
- 1...Kd5
- 2.Sg5#
- 1...Rxg8
- 2.Qxe4#
- 1...Rg7
- 2.Qxe4#
- 1...Sed5
- 2.Sde5#
- 1...Sbd5!
- threat
- 1.Sg5+?
- Keys
- 1.Rb6!
- threat
- 2.Sd6#
- 1...Kd5
- 2.Sg5#
- 1...Rxg8
- 2.Qxe4#
- 1...Sbd5
- 2.Sb2#
- 1...Rg7
- 2.Qxe4#
- 1...Sed5
- 2.Sde5#
- threat
- 1.Rb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- R(f);N_GUARD::QAR2(E),XP(e)
- R(f);N_GUARD,P_PINS(J)::QAR2(E),XP(e)
- R(f);N_GUARD,XB(K)::QAR2(E),XP(e)
- S(b);::S(D)
- P(i);XR(G)::B(K)+S(J),DCHECK,XP(i)
- Tries
- Try
- S(J);CHECK
- Vars
- S(b);P_SPINS(b)::S(D)
- Refutation
- S(c);P_SPINS(c)
- Try
- S(J);CHECK
- Vars
- R(f);XB(K)::QAR2(E),XP(e)
- S(b);P_SPINS(b)::S(D)
- Refutation
- S(c);P_SPINS(c)
- Try
- S(J);CHECK
- Vars
- R(f);XB(K)::QAR2(E),XP(e)
- S(b);P_SPINS(b)::S(D)
- Refutation
- S(c);P_SPINS(c)
- Try
- S(J);CHECK
- Vars
- R(f);XB(K)::QAR2(E),XP(e)
- S(b);P_SPINS(b)::S(D)
- Refutation
- S(c);P_SPINS(c)
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- R(a);XR(A)::B(K)+S(J),DCHECK
- R(a);XS(D)::B(K)+S(J),DCHECK
- S(c);XS(D)::B(K)+S(J),DCHECK
- P(e);XS(D)::B(K)+S(J),DCHECK
- R(f);::B(K)+S(J),DCHECK
- R(f);P_PINS(J)::S(D)
- S(c);::B(K)+S(J),DCHECK
- Refutation
- P(g);XB(H)
- Try
- R(G);P_SPINS(D)
- Threat
- B(K)+S(J),DCHECK
- Vars
- K(d);N_PINS(D),P_SPINP(e),S_FLIGHT::B(K)+S(J)
- R(f);N_GUARD,XB(K)::QAR2(E),XP(e)
- R(f);N_GUARD::QAR2(E),XP(e)
- S(b);N_PINS(D),SBLOCK::S(D)
- Refutation
- S(c);N_PINS(D)
- Try
- R(G);P_PINP(g),P_SPINS(D)
- Threat
- B(K)+S(J),DCHECK
- Vars
- K(d);N_PINS(D),N_SPINP(g),P_SPINP(e),S_FLIGHT::B(K)+S(J)
- R(f);N_GUARD,XB(K)::QAR2(E),XP(e)
- R(f);N_GUARD::QAR2(E),XP(e)
- S(b);N_PINS(D),SBLOCK::S(D)
- Refutation
- S(c);N_PINS(D)
- Try
- Actual
- R(G);P_SPINS(D)
- Threat
- B(K)+S(J),DCHECK
- Vars
- K(d);N_PINS(D),P_SPINP(e),S_FLIGHT::B(K)+S(J)
- R(f);N_GUARD,XB(K)::QAR2(E),XP(e)
- S(c);N_PINS(D),SBLOCK::S(D)
- R(f);N_GUARD::QAR2(E),XP(e)
- S(b);N_PINS(D),SBLOCK::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).