MESON Chess Problem Database
Problem Display
PID: 238916 (r6Q/2p3N1/1pK1p3/2PPkBP1/3RP3/2R3p1/4N3/B6r w - - 0 1)
Petite, Efren
Il Due Mosse, 1962
#2
12 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rhxa1
- 2.Se8#
- 1...Rb1
- 2.Se8#
- 1...Rc1
- 2.Se8#
- 1...Rd1
- 2.Se8#
- 1...Re1
- 2.Se8#
- 1...Rf1
- 2.Se8#
- 1...Rg1
- 2.Se8#
- 1...Raxa1
- 2.Sh5#
- 1...Ra2
- 2.Sh5#
- 1...Ra3
- 2.Sh5#
- 1...Ra4
- 2.Sh5#
- 1...Ra5
- 2.Sh5#
- 1...Ra6
- 2.Sh5#
- 1...Ra7
- 2.Sh5#
- 1...exd5
- 2.Rxd5#
- 1...Rhxa1
- Tries
- 1.Ra3?
- threat
- 2.Rd1#
- 1...Rxa1
- 2.Se8#
- 1...Rxa3
- 2.Sh5#
- 1...exd5
- 2.Rxd5#
- 1...Rb1
- 2.Se8#
- 1...Rc1
- 2.Se8#
- 1...Rd1
- 2.Se8#
- 2.Rxd1#
- 1...Ra4
- 2.Sh5#
- 1...exf5!
- threat
- 1.Rd1?
- threat
- 2.Ra3#
- 1...Rxd1
- 2.Se8#
- 1...Rxa1
- 2.Sh5#
- 1...exd5
- 2.Rxd5#
- 1...Ra2
- 2.Sh5#
- 1...Ra3
- 2.Sh5#
- 2.Rxa3#
- 1...Ra4
- 2.Sh5#
- 1...exf5!
- threat
- 1.Ra4?
- threat
- 2.Rc1#
- 1...Rxa1
- 2.Se8#
- 1...Rxa4
- 2.Sh5#
- 1...Rb1
- 2.Se8#
- 1...Rc1
- 2.Se8#
- 2.Rxc1#
- 1...Rd1
- 2.Se8#
- 1...exd5!
- threat
- 1.Qh6?
- threat
- 2.Qxe6#
- 2.Qf6#
- 1...exd5
- 2.Rxd5#
- 2.Qe6#
- 2.Qf6#
- 1...exf5
- 2.Qe6#
- 2.Qf6#
- 1...Re8
- 2.Qf6#
- 1...Rf8
- 2.Qxe6#
- 1...Rxh6!
- threat
- 1.Qc8?
- threat
- 2.Qxe6#
- 2.Qxc7#
- 1...exd5
- 2.Rxd5#
- 2.Qe6#
- 2.Qxc7#
- 1...exf5
- 2.Qxf5#
- 2.Qe6#
- 2.Qxc7#
- 1...Rh6
- 2.Qxc7#
- 1...Ra7
- 2.Qxe6#
- 1...Rxc8!
- threat
- 1.Qd8?
- threat
- 2.Qf6#
- 2.Qxc7#
- 1...Rh6
- 2.Qxc7#
- 1...Ra7
- 2.Qf6#
- 1...Rc8
- 2.Qf6#
- 1...Rxd8!
- threat
- 1.dxe6?
- threat
- 2.Rd5#
- 1...Rd1
- 2.Se8#
- 1...Rd8!
- threat
- 1.Ra3?
- Keys
- 1.Rc1!
- threat
- 2.Ra4#
- 1...Rxc1
- 2.Se8#
- 1...Rxa1
- 2.Sh5#
- 1...exd5
- 2.Rxd5#
- 1...Rd1
- 2.Se8#
- 1...Ra2
- 2.Sh5#
- 1...Ra3
- 2.Sh5#
- 1...Ra4
- 2.Sh5#
- 2.Rxa4#
- threat
- 1.Rc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- R(a);N_GUARD,XB(A)::QAB(L)+S(K)
- R(a);N_GUARD::QAB(L)+S(K)
- R(g);N_GUARD,XB(A)::QAB(L)+S(K)
- R(g);N_GUARD::QAB(L)+S(K)
- P(e);OGATE,XP(G)::R1(D),XP(e)
- Tries
- Try
- R(C);
- Threat
- B(A)+R(D)
- Vars
- R(a);N_GUARD,XB(A)::QAB(L)+S(K)
- R(g);N_GUARD,XR(C)::QAB(L)+S(K)
- P(e);OGATE,XP(G)::B(A)+R(D),DCHECK,XP(e)
- R(a);N_GUARD::QAB(L)+S(K)
- R(a);N_GUARD,P_PINP(F)::QAB(L)+S(K)
- R(g);N_GUARD::QAB(L)+S(K)
- Refutation
- P(e);XB(H)
- Try
- R(D);
- Threat
- B(A)+R(C)
- Vars
- R(a);N_GUARD,XR(D)::QAB(L)+S(K)
- R(g);N_GUARD,XB(A)::QAB(L)+S(K)
- P(e);OGATE,XP(G)::R1(D),XP(e)
- R(g);N_GUARD::QAB(L)+S(K)
- Refutation
- P(e);XB(H)
- Try
- R(D);
- Threat
- B(A)+R(C)
- Vars
- R(a);N_GUARD,XB(A)::QAB(L)+S(K)
- R(g);N_GUARD,XR(D)::QAB(L)+S(K)
- R(a);N_GUARD::QAB(L)+S(K)
- Refutation
- P(e);XP(G)
- Try
- Q(L);
- Threat
- DUALS(2)
- Vars
- R(g);::QAB1(L)
- R(g);::QAR1(L),XP(e)
- Refutation
- R(a);XQ(L)
- Try
- Q(L);
- Threat
- DUALS(2)
- Vars
- R(a);::QAB(L),XP(f)
- R(g);::QAR1(L),XP(e)
- Refutation
- R(g);XQ(L)
- Try
- Q(L);
- Threat
- DUALS(2)
- Vars
- R(a);::QAB(L),XP(f)
- R(g);::QAB1(L)
- Refutation
- R(g);XQ(L)
- Try
- P(G);XP(e)
- Threat
- R1(D)
- Vars
- R(a);N_GUARD::QAB(L)+S(K)
- Refutation
- R(g);
- Try
- Actual
- R(C);
- Threat
- B(A)+R(D)
- Vars
- R(a);N_GUARD,P_PINP(F),XR(C)::QAB(L)+S(K)
- R(g);N_GUARD,XB(A)::QAB(L)+S(K)
- P(e);OGATE,XP(G)::B(A)+R(D),DCHECK,XP(e)
- R(a);N_GUARD::QAB(L)+S(K)
- R(g);N_GUARD::QAB(L)+S(K)
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