MESON Chess Problem Database
Problem Display
PID: 241320 (8/B1N1n3/2Q3n1/3r4/3b1k2/3B4/6R1/4NK2 w - - 0 1)
Gavrilov, Constantin Grigorievich
Revista Romana de Sah, 1929
#2
7 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ke3
- 2.Qc1#
- 1...Ra5
- 2.Qe4#
- 1...Rb5
- 2.Qe4#
- 1...Rc5
- 2.Qe4#
- 1...Re5
- 2.Qf3#
- 1...Rf5
- 2.Qe4#
- 1...Rg5
- 2.Qe4#
- 1...Rh5
- 2.Qe4#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Qe4#
- 1...Rd8
- 2.Qe4#
- 1...Be5
- 2.Se6#
- 2.Qc1#
- 1...Se5
- 2.Qh6#
- 1...Ke3
- Tries
- 1.Sxd5+?
- 1...Ke5
- 2.Sf3#
- 2.Bb8#
- 1...Sxd5!
- 1...Ke5
- 1.Se6+?
- 1...Ke3
- 2.Re2#
- 2.Qc1#
- 1...Ke5!
- 1...Ke3
- 1.Bxd4?
- threat
- 2.Se6#
- 2.Qc1#
- 1...Sxc6
- 2.Sxd5#
- 2.Se6#
- 1...Rc5
- 2.Se6#
- 2.Qf3#
- 2.Qe4#
- 1...Re5
- 2.Qf3#
- 1...Rd6
- 2.Qf3#
- 2.Qe4#
- 2.Qc1#
- 1...Sf8
- 2.Qc1#
- 1...Sf5
- 2.Sxd5#
- 2.Se6#
- 1...Rxd4!
- threat
- 1.Rg4+?
- 1...Ke3
- 2.Qc1#
- 1...Ke5
- 2.Sf3#
- 2.Qe6#
- 1...Kxg4!
- 1...Ke3
- 1.Qxd5?
- threat
- 2.Qe4#
- 2.Qxd4#
- 2.Qg5#
- 1...Ke3
- 2.Qf3#
- 2.Qe4#
- 2.Qxd4#
- 1...Bxa7
- 2.Qe4#
- 2.Qg5#
- 1...Ba1
- 2.Se6#
- 2.Qe4#
- 2.Qg5#
- 1...Bg1
- 2.Se6#
- 2.Qe4#
- 2.Qg5#
- 1...Bb2
- 2.Se6#
- 2.Qe4#
- 2.Qg5#
- 1...Bf2
- 2.Se6#
- 2.Qe4#
- 2.Qg5#
- 1...Bc3
- 2.Se6#
- 2.Qe4#
- 2.Qg5#
- 1...Be3
- 2.Se6#
- 2.Qe4#
- 2.Qg5#
- 1...Bc5
- 2.Qe4#
- 2.Qg5#
- 1...Be5
- 2.Se6#
- 2.Qf3#
- 2.Qe4#
- 1...Bb6
- 2.Qe4#
- 2.Qg5#
- 1...Bf6
- 2.Se6#
- 2.Qe4#
- 1...Bg7
- 2.Se6#
- 2.Qe4#
- 2.Qg5#
- 1...Bh8
- 2.Se6#
- 2.Qe4#
- 2.Qg5#
- 1...Se5
- 2.Qe4#
- 2.Qxd4#
- 1...Sf5
- 2.Qe4#
- 1...Sc6
- 2.Qe4#
- 2.Qg5#
- 1...Sxd5!
- threat
- 1.Qc1+?
- 1...Be3
- 2.Qxe3#
- 1...Ke5!
- 1...Be3
- 1.Qe6?
- threat
- 2.Rg4#
- 2.Qe4#
- 1...Se5
- 2.Qh6#
- 1...Rf5
- 2.Qe4#
- 1...Rg5
- 2.Qe4#
- 1...Be5
- 2.Rg4#
- 2.Qg4#
- 1...Sf5
- 2.Sxd5#
- 2.Qe4#
- 1...Re5!
- threat
- 1.Qf6+?
- 1...Ke3
- 2.Re2#
- 2.Qf2#
- 2.Qf3#
- 1...Rf5
- 2.Qxd4#
- 1...Sf5
- 2.Sxd5#
- 1...Bxf6!
- 1...Ke3
- 1.Sxd5+?
- Keys
- 1.Bb8!
- threat
- 2.Sxd5#
- 1...Ke3
- 2.Qc1#
- 1...Ke5
- 2.Sxd5#
- 1...Ra5
- 2.Sd5#
- 2.Qe4#
- 1...Rb5
- 2.Sd5#
- 2.Qe4#
- 1...Rc5
- 2.Sd5#
- 2.Qe4#
- 1...Re5
- 2.Qf3#
- 1...Rf5
- 2.Sd5#
- 2.Qe4#
- 1...Rg5
- 2.Sd5#
- 2.Qe4#
- 1...Rh5
- 2.Sd5#
- 2.Qe4#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Sd5#
- 2.Qe4#
- 1...Rd8
- 2.Sd5#
- 2.Qe4#
- 1...Be5
- 2.Qc1#
- 1...Se5
- 2.Qh6#
- threat
- 1.Bb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- K(b);P_SPINB(a),S_FLIGHT::QAB(E)
- R(c);OGATE::QAR1(E)
- R(c);OGATE,SBLOCK::QAR1(E)
- S(d);OGATE,SBLOCK::QAB(E)
- Tries
- Try
- S(G);CHECK,XR(c)
- Refutation
- S(e);XS(G)
- Try
- S(G);CHECK
- Refutation
- K(b);S_FLIGHT
- Try
- B(F);XB(a)
- Threat
- DUALS(2)
- Vars
- R(c);OGATE::QAR1(E)
- S(d);::QAB(E)
- Refutation
- R(c);XB(F)
- Try
- R(C);CHECK
- Vars
- K(b);P_SPINB(a),S_FLIGHT::QAB(E)
- Refutation
- K(b);P-FLIGHT,XR(C)
- Try
- Q(E);XR(c)
- Threat
- DUALS(3)
- Vars
- S(e);::QAR1(E)
- Refutation
- S(e);XQ(E)
- Try
- Q(E);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAB1(E),XB(a)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- S(d);OGATE,SBLOCK::QAB(E)
- R(c);::QAR1(E)
- Refutation
- R(c);
- Try
- Q(E);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAR2(E),XB(a)
- S(e);P_SPINS(e)::S(G),XR(c)
- Refutation
- B(a);XQ(E)
- Try
- Actual
- B(F);
- Threat
- B(F)+S(G),DCHECK,XR(c)
- Vars
- K(b);S_FLIGHT::QAB(E)
- K(b);S_FLIGHT::B(F)+S(G),XR(c)
- R(c);OGATE,SBLOCK::QAR1(E)
- R(c);OGATE::QAR1(E)
- B(a);N_GUARD,SBLOCK::QAB(E)
- S(d);OGATE,SBLOCK::QAB(E)
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