MESON Chess Problem Database
Problem Display
PID: 177812 (3R4/1p1Q4/PK1P3b/2PkB2b/1P1P2rn/4p1NB/4N3/2R5 w - - 0 1)
Trenin, P
2nd HM., Sahs (Latvia), 1987
#2
13 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxg3
- 2.Qxb7#
- 1...Rxd4
- 2.Qe6#
- 1...Re4
- 2.Be6#
- 2.Qe6#
- 2.Qxb7#
- 1...Rf4
- 2.Be6#
- 2.Qe6#
- 2.Qxb7#
- 1...Rg5
- 2.Sf4#
- 2.Be6#
- 2.Qe6#
- 2.Qxb7#
- 1...Rg6
- 2.Qxb7#
- 1...Rg7
- 2.Be6#
- 2.Qe6#
- 1...Rg8
- 2.Be6#
- 2.Qe6#
- 2.Qxb7#
- 1...Bf7
- 2.Qxf7#
- 1...Sg6
- 2.Qf7#
- 1...Rxg3
- Tries
- 1.Kb5?
- threat
- 2.Sc3#
- 1...Rxd4
- 2.Qe6#
- 1...bxa6+!
- threat
- 1.Sf4+?
- 1...Rxf4
- 2.Be6#
- 2.Qe6#
- 2.Qxb7#
- 1...Bxf4!
- 1...Rxf4
- 1.Re8?
- threat
- 2.Qe6#
- 2.Qxb7#
- 1...Rxg3
- 2.Qxb7#
- 1...bxa6
- 2.Qc6#
- 2.Qe6#
- 2.Qb7#
- 1...Rg6
- 2.Qxb7#
- 1...Rg7
- 2.Be6#
- 2.Qe6#
- 1...Bf7
- 2.Qxb7#
- 2.Qxf7#
- 1...Bxe8!
- threat
- 1.Kb5?
- Keys
- 1.Qb5!
- threat
- 2.Qc4#
- 1...Ke6
- 2.Qc4#
- 1...Rxg3
- 2.Sc3#
- 1...Rxd4
- 2.c6#
- threat
- 1.Qb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(b);XS(C)::QAB(L),XP(g)
- R(b);XP(F)::QAB1(L)
- R(b);P_PINP(K)::QAB(L),XP(g)
- B(e);N_GUARD::QAB(L),XB(e)
- S(c);S_CUTB(e)::QAB(L)
- Tries
- Try
- K(J);P-FLIGHT
- Threat
- S(B)
- Vars
- R(b);XP(F)::QAB1(L)
- Refutation
- P(g);CHECK,XP(I)
- Try
- S(B);CHECK
- Refutation
- B(f);XS(B)
- Try
- R(M);
- Threat
- DUALS(2)
- Vars
- R(b);XS(C)::QAB(L),XP(g)
- R(b);P_PINP(K)::QAB(L),XP(g)
- Refutation
- B(e);XR(M)
- Try
- Actual
- Q(L);
- Threat
- QAB1(L)
- Vars
- K(d);P_SPINR(b),S_FLIGHT::QAB(L)
- R(b);XS(C)::S(B)
- R(b);XP(F)::QAR(L)+P(G)
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