MESON Chess Problem Database
Problem Display
PID: 7818 (K2n1Bb1/2R5/1p6/p2kb2Q/R7/4p2B/1pP5/1r2n3 w - - 0 1)
Rychkov, Vladimir Nikolaevich
3rd HM., Vecherni Petersburg, 1993-1994
#2
7 + 10
| 3705 | Album Russia (1992-1994) | 2000 |
SOLUTION
- SOUND
- Sets
- 1...Sxc2
- 2.Qf3#
- 1...Sg2
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sc6
- 2.Rd7#
- 1...b5
- 2.Rc5#
- 1...Sxc2
- Tries
- 1.Rf4?
- threat
- 2.c4#
- 1...Sxc2
- 2.Qf3#
- 1...b5
- 2.Rc5#
- 1...Rc1!
- threat
- 1.Rh4?
- threat
- 2.c4#
- 1...Sxc2
- 2.Qf3#
- 1...b5
- 2.Rc5#
- 1...Rc1!
- threat
- 1.Qd1+?
- 1...Bd4
- 2.Qxd4#
- 1...Sd3
- 2.Qf3#
- 1...Rxd1!
- 1...Bd4
- 1.Qg4?
- threat
- 2.Qc4#
- 2.Qe4#
- 2.c4#
- 1...Bxc7
- 2.Qe4#
- 1...Sxc2
- 2.Bg2#
- 2.Qf3#
- 2.Qg2#
- 2.Qc4#
- 2.Qe4#
- 1...Bh2
- 2.Qd4#
- 2.Qe4#
- 1...Bc3
- 2.Qe4#
- 1...Bg3
- 2.Qd4#
- 2.Qe4#
- 1...Bd4
- 2.Qxd4#
- 1...Bd6
- 2.Qd4#
- 2.Qe4#
- 1...Bf6
- 2.Qe4#
- 1...Bg7
- 2.Qe4#
- 1...Bh8
- 2.Qe4#
- 1...Rc1
- 2.Qc4#
- 2.Qe4#
- 1...Bh7
- 2.Qc4#
- 2.c4#
- 1...b5
- 2.Rc5#
- 2.Qe4#
- 1...Bf4!
- threat
- 1.Qh4?
- threat
- 2.Qc4#
- 2.Qe4#
- 2.c4#
- 1...Bxc7
- 2.Qe4#
- 1...Sxc2
- 2.Qc4#
- 2.Qe4#
- 1...Bh2
- 2.Qd4#
- 2.Qe4#
- 1...Bc3
- 2.Qe4#
- 1...Bg3
- 2.Qd4#
- 2.Qe4#
- 1...Bd4
- 2.Qxd4#
- 1...Bd6
- 2.Qd4#
- 2.Qe4#
- 1...Bf6
- 2.Qe4#
- 1...Bg7
- 2.Qe4#
- 1...Bh8
- 2.Qe4#
- 1...Rc1
- 2.Qc4#
- 2.Qe4#
- 1...Bh7
- 2.Qc4#
- 2.c4#
- 1...b5
- 2.Rc5#
- 2.Qe4#
- 1...Bf4!
- threat
- 1.Rf4?
- Keys
- 1.Qe8!
- threat
- 2.Qb5#
- 1...Bd4
- 2.c4#
- 1...Bd6
- 2.Qe4#
- 1...Sd3
- 2.Bg2#
- 1...Sc6
- 2.Qxc6#
- 1...Se6
- 2.Qc6#
- 1...Sb7
- 2.Qc6#
- 1...b5
- 2.Rc5#
- 2.Qxb5#
- threat
- 1.Qe8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- S(b);N_GUARD,XP(A)::QAB(D)
- S(b);N_GUARD::QAB(D)
- S(b);N_GUARD::QAB(D),XS(b)
- S(i);SBLOCK::R(E)
- P(h);N_GUARD::R1(E)
- Tries
- Try
- R(C);
- Threat
- P(A)
- Vars
- S(b);N_GUARD,XP(A)::QAB(D)
- P(h);N_GUARD::R1(E)
- Refutation
- R(a);
- Try
- R(C);
- Threat
- P(A)
- Vars
- S(b);N_GUARD,XP(A)::QAB(D)
- P(h);N_GUARD::R1(E)
- Refutation
- R(a);
- Try
- Q(D);CHECK,N_PINB(g)
- Vars
- B(g);N_GUARD,P_SPINB(g)::QAR1(D),XB(g)
- S(b);N_GUARD,P_SPINS(b)::QAB(D)
- Refutation
- R(a);XQ(D)
- Try
- Q(D);N_PINB(g)
- Threat
- DUALS(3)
- Vars
- B(g);XR(E)::QAB1(D)
- B(g);::QAB1(D)
- B(g);N_GUARD::QAR1(D),XB(g)
- Refutation
- B(g);
- Try
- Q(D);N_PINB(g)
- Threat
- DUALS(3)
- Vars
- B(g);XR(E)::QAB1(D)
- B(g);::QAB1(D)
- B(g);N_GUARD::QAR1(D),XB(g)
- Refutation
- B(g);
- Try
- Actual
- Q(D);N_PINB(g)
- Threat
- QAR2(D)
- Vars
- B(g);SBLOCK::P(A)
- B(g);OGATE::QAB1(D)
- S(b);N_GUARD::B(B)
- S(i);N_GUARD::QAB1(D),XS(i)
- S(i);N_GUARD::QAB1(D)
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