MESON Chess Problem Database
Problem Display
PID: 263284 (3K2b1/6B1/3p4/2P4R/PNkP2Q1/1npN4/2p4r/1R3Bb1 w - - 0 1)
Erokhin, Vladimir Alekseevich
1st Comm., Szachy, 1983
#2
11 + 8
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Sf2#
- 2.Se5#
- 1...Sc1
- 2.Se5#
- 1...Sd2
- 2.Se5#
- 1...Sxd4
- 2.Sf2#
- 1...Sa5
- 2.Sf2#
- 2.Se5#
- 1...Sxc5
- 2.Se5#
- 1...Sa1
- Tries
- 1.Sa2?
- threat
- 2.Sb2#
- 2.Sf2#
- 1...Rxh5
- 2.Sdb4#
- 2.Sf4#
- 1...Sxd4
- 2.Sf2#
- 2.Rb4#
- 1...Sxc5
- 2.Rb4#
- 1...cxb1Q
- 2.Sb2#
- 1...cxb1B
- 2.Sb2#
- 1...cxb1R
- 2.Sb2#
- 1...c1Q
- 2.Sb2#
- 1...c1S
- 2.Sb2#
- 1...c1R
- 2.Sb2#
- 1...Rd2
- 2.Sb2#
- 1...Rf2
- 2.Sb2#
- 2.Sxf2#
- 1...Rh3
- 2.Sb2#
- 1...Bf2
- 2.Sdc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sdb4#
- 2.Sf4#
- 1...Bh7
- 2.Sb2#
- 1...Sa1
- 2.Sf2#
- 2.Rb4#
- 1...Sc1
- 2.Rb4#
- 1...Sd2
- 2.Rb4#
- 1...Sa5
- 2.Sf2#
- 2.Rb4#
- 1...Re2!
- threat
- 1.Sa6?
- threat
- 2.Sb2#
- 2.Sf2#
- 1...Rxh5
- 2.Sdb4#
- 2.Sf4#
- 1...Sxd4
- 2.Sf2#
- 2.Rb4#
- 1...Sxc5
- 2.Rb4#
- 1...cxb1Q
- 2.Sb2#
- 1...cxb1B
- 2.Sb2#
- 1...cxb1R
- 2.Sb2#
- 1...c1Q
- 2.Sb2#
- 1...c1S
- 2.Sb2#
- 1...c1R
- 2.Sb2#
- 1...Rd2
- 2.Sb2#
- 1...Rf2
- 2.Sb2#
- 2.Sxf2#
- 1...Rh3
- 2.Sb2#
- 1...Bf2
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sdb4#
- 2.Sf4#
- 1...Bh7
- 2.Sb2#
- 1...Sa1
- 2.Sf2#
- 2.Rb4#
- 1...Sc1
- 2.Rb4#
- 1...Sd2
- 2.Rb4#
- 1...Sa5
- 2.Sf2#
- 2.Rb4#
- 1...Re2!
- threat
- 1.Sc6?
- threat
- 2.Sb2#
- 2.Sf2#
- 1...Rxh5
- 2.Sdb4#
- 2.Sf4#
- 1...Sxd4
- 2.Sf2#
- 2.Sa5#
- 2.Rb4#
- 1...Sxc5
- 2.Sa5#
- 2.Rb4#
- 1...cxb1Q
- 2.Sb2#
- 1...cxb1B
- 2.Sb2#
- 1...cxb1R
- 2.Sb2#
- 1...c1Q
- 2.Sb2#
- 1...c1S
- 2.Sb2#
- 1...c1R
- 2.Sb2#
- 1...Rd2
- 2.Sb2#
- 1...Rf2
- 2.Sb2#
- 2.Sxf2#
- 1...Rh3
- 2.Sb2#
- 1...Bf2
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sdb4#
- 2.Sf4#
- 1...Bh7
- 2.Sb2#
- 1...Sa1
- 2.Sf2#
- 2.Sa5#
- 2.Rb4#
- 1...Sc1
- 2.Sa5#
- 2.Rb4#
- 1...Sd2
- 2.Sa5#
- 2.Rb4#
- 1...Sa5
- 2.Sf2#
- 2.Sxa5#
- 2.Rb4#
- 1...Re2!
- threat
- 1.Qe6+?
- 1...d5
- 2.Qa6#
- 1...Bxe6!
- 1...d5
- 1.Sa2?
- Keys
- 1.Qc8!
- threat
- 2.Qa6#
- 1...Sxd4
- 2.Se5#
- 1...Sxc5
- 2.Sf2#
- threat
- 1.Qc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- S(d);::B(B)+S(C),DCHECK
- S(d);P_SPINS(d),XP(F)::B(B)+S(C)
- S(d);XP(H)::B(B)+S(C),DCHECK
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(d);OGATE,XP(H)::R1(A)
- P(b);XR(A)::B(B)+S(C),DCHECK
- P(b);::B(B)+S(C),DCHECK
- R(c);::B(B)+S(C),DCHECK
- B(h);::B(B)+S(C),DCHECK
- S(d);OGATE::R1(A)
- Refutation
- R(c);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(d);OGATE,XP(H)::R1(A)
- P(b);XR(A)::B(B)+S(C),DCHECK
- P(b);::B(B)+S(C),DCHECK
- R(c);::B(B)+S(C),DCHECK
- B(h);::B(B)+S(C),DCHECK
- S(d);OGATE::R1(A)
- Refutation
- R(c);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- P(b);XR(A)::B(B)+S(C),DCHECK
- P(b);::B(B)+S(C),DCHECK
- R(c);::B(B)+S(C),DCHECK
- B(h);::B(B)+S(C),DCHECK
- Refutation
- R(c);
- Try
- Q(G);CHECK
- Vars
- P(g);OGATE,P_SPINP(g)::QAB(G)
- Refutation
- B(h);XQ(G)
- Try
- Actual
- Q(G);
- Threat
- QAB(G)
- Vars
- S(d);SBLOCK,XP(F)::B(B)+S(C),DCHECK
- S(d);P_SPINS(d),XP(H)::B(B)+S(C)
Developed and maintained by Brian Stephenson.
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