MESON Chess Problem Database
Problem Display
PID: 85242 (1N2KR2/pP2p3/Qq2k3/2p4B/2P1p3/4n3/4N2B/8 w - - 0 1)
Ivunin, Alexey Vsevolodovich
Kirillov, Valery Afanasievich
Sachsische Zeitung, 1986
#2
9 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc6+
- 2.Qxc6#
- 1...Sd1
- 2.Bg4#
- 1...Sf1
- 2.Bg4#
- 1...Sc2
- 2.Bg4#
- 1...Sg2
- 2.Bg4#
- 1...Sxc4
- 2.Qxc4#
- 1...Sg4
- 2.Bxg4#
- 1...Sd5
- 2.Bg4#
- 1...Qc6+
- Tries
- 1.Sc6?
- threat
- 2.Sd8#
- 1...Qd8+
- 2.Sxd8#
- 1...Qxc6+
- 2.Qxc6#
- 1...Sxc4
- 2.Qxc4#
- 1...Qb5!
- threat
- 1.Bc7?
- threat
- 2.Sf4#
- 1...Qc6+
- 2.Qxc6#
- 1...Sg2
- 2.Bg4#
- 1...Sd5
- 2.Bg4#
- 1...Qd6!
- threat
- 1.Bg4+?
- 1...Sf5
- 2.Bxf5#
- 1...Sxg4!
- 1...Sf5
- 1.Rf2?
- threat
- 2.Bf7#
- 1...Qc6+
- 2.Qxc6#
- 1...Sf5!
- threat
- 1.Sc6?
- Keys
- 1.Sd7!
- threat
- 2.Sxc5#
- 1...Sxc4
- 2.Qxc4#
- 1...Qc6
- 2.Qxc6#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(d);CHECK,OGATE::QAR2(E),XQ(d)
- S(a);N_GUARD::B(D)
- S(a);OGATE,XP(C)::QAB(E),XS(a)
- S(a);N_GUARD::B(D),XS(a)
- Tries
- Try
- S(G);N_PINQ(d)
- Threat
- S(G)
- Vars
- Q(d);CHECK::QAR(E)+S(G),DCHECK,XQ(d)
- Q(d);CHECK,OGATE,P_SPINQ(d),XS(G)::QAR2(E),XQ(d)
- S(a);OGATE,XP(C)::QAB(E),XS(a)
- Refutation
- Q(d);P_PINS(G)
- Try
- B(B);
- Threat
- S(A)
- Vars
- Q(d);CHECK,OGATE::QAR2(E),XQ(d)
- S(a);N_GUARD::B(D)
- Refutation
- Q(d);
- Try
- B(D);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::B(D),XS(a)
- Refutation
- S(a);XB(D)
- Try
- R(I);
- Threat
- B(D)
- Vars
- Q(d);CHECK,OGATE::QAR2(E),XQ(d)
- Refutation
- S(a);
- Try
- Actual
- S(G);
- Threat
- S(G),XP(c)
- Vars
- S(a);OGATE,XP(C)::QAB(E),XS(a)
- Q(d);OGATE,P_PINS(G)::QAR2(E),XQ(d)
Developed and maintained by Brian Stephenson.
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