MESON Chess Problem Database
Problem Display
PID: 6255 (1k3N1Q/pB1RNp2/KRpr2p1/B1p1b3/p1P3b1/3p4/8/7q w - - 0 1)
Mari, Alberto
Prize, Chess Amateur (The) (Valve Ty.), 1928
#2
9 + 12
| 102 | Probleemblad | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Sxc6#
- 1...Rf6
- 2.Sh7#
- 1...Bh2
- 2.Se6#
- 2.Sfxg6#
- 2.Sh7#
- 1...Bg3
- 2.Sh7#
- 1...Bf4
- 2.Sh7#
- 1...f6
- 2.Sh7#
- 1...Rd5
- Tries
- 1.Ba8+?
- 1...Kxa8
- 2.Rxa7#
- 1...axb6!
- 1...Kxa8
- 1.Bc8+?
- 1...Ka8
- 2.Rxa7#
- 1...axb6!
- 1...Ka8
- 1.Rb1?
- threat
- 2.Bc7#
- 1...Rxd7
- 2.Sxd7#
- 1...Bxd7
- 2.Sxd7#
- 1...Rd5
- 2.Sxc6#
- 1...Re6
- 2.Rd8#
- 1...Rf6
- 2.Sh7#
- 1...Rd4!
- threat
- 1.Rb3?
- threat
- 2.Bc7#
- 1...Rxd7
- 2.Sxd7#
- 1...Bxd7
- 2.Sxd7#
- 1...Rd5
- 2.Sxc6#
- 1...Re6
- 2.Rd8#
- 1...Rf6
- 2.Sh7#
- 1...Rd4!
- threat
- 1.Rb4?
- threat
- 2.Bc7#
- 1...Rxd7
- 2.Sxd7#
- 1...Bxd7
- 2.Sxd7#
- 1...Rd5
- 2.Sxc6#
- 1...Re6
- 2.Rd8#
- 1...Rf6
- 2.Sh7#
- 1...Rd4!
- threat
- 1.Rb5?
- threat
- 2.Bc7#
- 2.Bxc6#
- 1...Rxd7
- 2.Sxd7#
- 1...Bxd7
- 2.Sxd7#
- 2.Bxc6#
- 1...Rd4
- 2.Bxc6#
- 1...Qb1
- 2.Bc7#
- 1...Rd5
- 2.Sxc6#
- 2.Bxc6#
- 1...Re6
- 2.Bxc6#
- 2.Rd8#
- 1...Rf6
- 2.Sh7#
- 2.Bxc6#
- 1...cxb5+!
- threat
- 1.Rd8+?
- 1...Kc7
- 2.Rb1#
- 2.Rb2#
- 2.Rb3#
- 2.Rb4#
- 2.Rb5#
- 2.Rxc6#
- 1...Bc8
- 2.Rxc8#
- 1...Rxd8!
- 1...Kc7
- 1.Qxe5?
- threat
- 2.Qxd6#
- 1...Qh2
- 2.Sxc6#
- 1...Qd5!
- threat
- 1.Ba8+?
- Keys
- 1.Rb2!
- threat
- 2.Bc7#
- 1...Rxd7
- 2.Sxd7#
- 1...Bxd7
- 2.Sxd7#
- 1...Rd4
- 2.Bxc6#
- 1...Rd5
- 2.Sxc6#
- 1...Re6
- 2.Rd8#
- 1...Rf6
- 2.Sh7#
- threat
- 1.Rb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- R(h);N_GUARD,S_CUTQ(a)::S(G),XP(g)
- R(h);S_CUTB(f)::QAR(I)+S(H)
- B(f);N_GUARD::QAR(I)+S(H)
- P(k);S_CUTB(f)::QAR(I)+S(H)
- Tries
- Try
- B(E);CHECK
- Vars
- K(l);P-FLIGHT,XB(E)::R1(F),XP(j)
- Refutation
- P(j);XR(D)
- Try
- B(E);CHECK
- Vars
- K(l);P-FLIGHT::R1(F),XP(j)
- Refutation
- P(j);XR(D)
- Try
- R(D);
- Threat
- B(B)
- Vars
- R(h);XR(F)::QAR(I)+S(H),DCHECK,XR(h)
- B(d);XR(F)::QAR(I)+S(H),DCHECK,XB(d)
- R(h);N_GUARD,S_CUTQ(a)::S(G),XP(g)
- R(h);N_GUARD,S_CUTB(d)::R(F)
- R(h);S_CUTB(f)::QAR(I)+S(H)
- Refutation
- R(h);
- Try
- R(D);
- Threat
- B(B)
- Vars
- R(h);XR(F)::QAR(I)+S(H),DCHECK,XR(h)
- B(d);XR(F)::QAR(I)+S(H),DCHECK,XB(d)
- R(h);N_GUARD,S_CUTQ(a)::S(G),XP(g)
- R(h);N_GUARD,S_CUTB(d)::R(F)
- R(h);S_CUTB(f)::QAR(I)+S(H)
- Refutation
- R(h);
- Try
- R(D);
- Threat
- B(B)
- Vars
- R(h);XR(F)::QAR(I)+S(H),DCHECK,XR(h)
- B(d);XR(F)::QAR(I)+S(H),DCHECK,XB(d)
- R(h);N_GUARD,S_CUTQ(a)::S(G),XP(g)
- R(h);N_GUARD,S_CUTB(d)::R(F)
- R(h);S_CUTB(f)::QAR(I)+S(H)
- Refutation
- R(h);
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- R(h);XR(F)::QAR(I)+S(H),DCHECK,XR(h)
- R(h);::R(D)+B(E),XP(g)
- Q(a);::B(B)
- Refutation
- P(g);CHECK,XR(D)
- Try
- R(F);CHECK
- Vars
- B(d);N_GUARD,P_PINB(E),P_SPINB(d)::R1(F),XB(d)
- Refutation
- R(h);XR(F)
- Try
- Q(I);P_PINR(h),XB(f)
- Threat
- QAB(I),XR(h)
- Vars
- Q(a);N_GUARD::S(G),XP(g)
- Refutation
- Q(a);
- Try
- Actual
- R(D);
- Threat
- B(B)
- Vars
- R(h);XR(F)::QAR(I)+S(H),DCHECK,XR(h)
- B(d);XR(F)::QAR(I)+S(H),DCHECK,XB(d)
- R(h);S_CUTB(f)::R(D)+B(E),XP(g)
- R(h);N_GUARD,S_CUTQ(a)::S(G),XP(g)
- R(h);N_GUARD,S_CUTB(d)::R(F)
- R(h);S_CUTB(f)::QAR(I)+S(H)
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