MESON Chess Problem Database
Problem Display
PID: 87720 (1K1Q2b1/8/1p5b/2p1p2R/P1k5/PN1p2rr/1Pn5/2N1R1B1 w - - 0 1)
Petkov, Petko Andonov
Problemista, 1966
#2
10 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Sd2#
- 2.Qxg8#
- 1...Rg5
- 2.Sd2#
- 1...Bd2
- 2.Sxd2#
- 1...Be3
- 2.Qxd3#
- 1...Bg5
- 2.Qxg8#
- 1...Bg7
- 2.Sd2#
- 2.Qxg8#
- 1...Bf8
- 2.Sd2#
- 1...Sa1
- 2.Re4#
- 1...Sxa3
- 2.Re4#
- 1...Se3
- 2.Sd2#
- 2.Qxd3#
- 1...Sb4
- 2.Re4#
- 1...b5
- 2.Sa5#
- 1...Re3
- Tries
- 1.Be3?
- threat
- 2.Sd2#
- 2.Qxd3#
- 1...Rxe3
- 2.Sd2#
- 2.Qxg8#
- 1...Bxe3
- 2.Qxd3#
- 1...Sxe1
- 2.Sd2#
- 1...Rg2
- 2.Qxd3#
- 1...Rh2
- 2.Qxd3#
- 1...Bd5
- 2.Sd2#
- 1...Bh7
- 2.Sd2#
- 1...Sb4
- 2.Sd2#
- 1...Sd4
- 2.Sd2#
- 1...d2
- 2.Sxd2#
- 2.Qd3#
- 1...e4
- 2.Sd2#
- 1...Sxa3!
- threat
- 1.Re3?
- threat
- 2.Sd2#
- 2.Qxd3#
- 1...Rxe3
- 2.Sd2#
- 2.Qxg8#
- 1...Bxe3
- 2.Qxd3#
- 1...Sxa3
- 2.Re4#
- 1...Rg2
- 2.Qxd3#
- 1...Rh2
- 2.Qxd3#
- 1...Bh7
- 2.Sd2#
- 1...Se1
- 2.Sd2#
- 2.Re4#
- 1...Sb4
- 2.Sd2#
- 2.Re4#
- 1...Sd4
- 2.Sd2#
- 1...d2
- 2.Sxd2#
- 2.Qd3#
- 1...e4
- 2.Sd2#
- 1...Bd5!
- threat
- 1.Be3?
- Keys
- 1.Rg5!
- threat
- 2.Sd2#
- 2.Qxg8#
- 1...Rxg5
- 2.Sd2#
- 1...Bxg5
- 2.Qxg8#
- 1...Sxa3
- 2.Re4#
- 1...Sd4
- 2.Sd2#
- 1...Rg2
- 2.Qxg8#
- 1...Rf3
- 2.Sd2#
- 1...Rh2
- 2.Qxg8#
- 1...Bf8
- 2.Sd2#
- 1...Bd5
- 2.Sd2#
- 1...Be6
- 2.Sd2#
- 1...Bf7
- 2.Sd2#
- 1...Bh7
- 2.Sd2#
- 1...Se3
- 2.Sd2#
- 2.Qxd3#
- 1...Sb4
- 2.Sd2#
- 2.Re4#
- 1...d2
- 2.Sxd2#
- 2.Qxg8#
- threat
- 1.Rg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 5
- Sets
- R(c);S_CUTB(i)::S(F)
- B(i);N_GUARD::S(F),XB(i)
- B(i);S_CUTR(c)::QAB1(J),XP(b)
- B(i);S_CUTR(c)::QAB(J),XB(j)
- B(i);N_GUARD::S(F)
- S(a);N_GUARD::R(B)
- S(a);N_GUARD,XP(E)::R(B)
- P(h);N_GUARD::S(F)
- Tries
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- B(i);XB(C)::QAB1(J),XP(b)
- S(a);XR(B)::S(F)
- R(c);::QAB1(J),XP(b)
- R(d);::QAB1(J),XP(b)
- B(j);::S(F)
- S(a);::S(F)
- P(g);::S(F)
- Refutation
- S(a);XP(E)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- B(i);XR(B)::QAB1(J),XP(b)
- S(a);N_GUARD,XP(E)::R(B)
- R(c);::QAB1(J),XP(b)
- R(d);::QAB1(J),XP(b)
- B(j);::S(F)
- S(a);::S(F)
- P(g);::S(F)
- Refutation
- B(j);
- Try
- Actual
- R(H);
- Threat
- DUALS(2)
- Vars
- R(c);XR(H)::S(F)
- B(i);XR(H)::QAB(J),XB(j)
- S(a);N_GUARD,XP(E)::R(B)
- S(a);::S(F)
- R(c);::QAB(J),XB(j)
- R(c);::S(F)
- R(d);::QAB(J),XB(j)
- B(i);::S(F)
- B(j);::S(F)
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