MESON Chess Problem Database
Problem Display
PID: 59211 (3n4/1p1K4/B2p4/3k1rQ1/1Pp4R/3b4/2rbN3/B2R4 w - - 0 1)
Mari, Alberto
1st Prize, Brisbane Courier, 1921-1922
#2
8 + 9
| 56 | The Problemist | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Rd4#
- 1...Bc1
- 2.Qxf5#
- 1...Be1
- 2.Qxf5#
- 1...Be3
- 2.Qxf5#
- 1...Bxb4
- 2.Qxf5#
- 1...Bf4
- 2.Qg2#
- 1...Bxe2
- 2.Qxf5#
- 1...Be4
- 2.Sf4#
- 1...Se6
- 2.Bxb7#
- 1...Sf7
- 2.Bxb7#
- 1...Re5
- Tries
- 1.Bg7?
- threat
- 2.Rd4#
- 1...Bxb4
- 2.Qxf5#
- 1...Bf4
- 2.Qg2#
- 1...Bc3
- 2.Bxc4#
- 1...Be3
- 2.Qxf5#
- 1...Be4
- 2.Sf4#
- 1...Se6
- 2.Bxb7#
- 1...Sc6!
- threat
- 1.Bh8?
- threat
- 2.Rd4#
- 1...Bxb4
- 2.Qxf5#
- 1...Bf4
- 2.Qg2#
- 1...Bc3
- 2.Bxc4#
- 1...Be3
- 2.Qxf5#
- 1...Be4
- 2.Sf4#
- 1...Se6
- 2.Bxb7#
- 1...Sc6!
- threat
- 1.Bxc4+?
- 1...Bxc4
- 2.Qxf5#
- 1...Rxc4!
- 1...Bxc4
- 1.Bxb7+?
- 1...Sc6
- 2.Bxc6#
- 1...Sxb7!
- 1...Sc6
- 1.Qg2+?
- 1...Be4
- 2.Qxe4#
- 1...Rf3!
- 1...Be4
- 1.Qg8+?
- 1...Se6
- 2.Bxb7#
- 2.Qxe6#
- 1...Sf7
- 2.Bxb7#
- 1...Rf7+!
- 1...Se6
- 1.Bg7?
- Keys
- 1.Bf6!
- threat
- 2.Rd4#
- 1...Bxb4
- 2.Qxf5#
- 1...Bf4
- 2.Qg2#
- 1...Bc3
- 2.Bxc4#
- 1...Be3
- 2.Qxf5#
- 1...Be4
- 2.Sf4#
- 1...Sc6
- 2.Qg8#
- 1...Se6
- 2.Bxb7#
- threat
- 1.Bf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(f);::R1(E)
- B(b);P_SPINB(c)::QAR2(F),XR(f)
- B(b);P_SPINB(c),XP(D)::QAR2(F),XR(f)
- B(b);P_SPINB(c)::QAB(F)
- B(c);N_GUARD,P_SPINB(b),XS(C)::QAR2(F),XR(f)
- B(c);P_SPINB(b),SBLOCK::S(C)
- S(i);N_GUARD::B(G),XP(h)
- Tries
- Try
- B(A);
- Threat
- R1(E)
- Vars
- B(b);P_SPINB(c),XP(D)::QAR2(F),XR(f)
- B(b);P_SPINB(c)::QAB(F)
- B(b);P_SPINB(c),S_CUTR(a)::B(G),XP(d)
- B(b);P_SPINB(c)::QAR2(F),XR(f)
- B(c);P_SPINB(b),SBLOCK::S(C)
- S(i);N_GUARD::B(G),XP(h)
- Refutation
- S(i);
- Try
- B(A);
- Threat
- R1(E)
- Vars
- B(b);P_SPINB(c),XP(D)::QAR2(F),XR(f)
- B(b);P_SPINB(c)::QAB(F)
- B(b);P_SPINB(c),S_CUTR(a)::B(G),XP(d)
- B(b);P_SPINB(c)::QAR2(F),XR(f)
- B(c);P_SPINB(b),SBLOCK::S(C)
- S(i);N_GUARD::B(G),XP(h)
- Refutation
- S(i);
- Try
- B(G);CHECK,XP(d)
- Vars
- B(c);P_SPINB(b),XB(G)::QAR2(F),XR(f)
- Refutation
- R(a);XB(G)
- Try
- B(G);CHECK,XP(h)
- Vars
- S(i);N_GUARD,P_SPINS(i)::B(G),XS(i)
- Refutation
- S(i);XB(G)
- Try
- Q(F);CHECK,N_PINR(f)
- Vars
- B(c);N_GUARD,P_SPINB(b)::QAB1(F),XB(c)
- Refutation
- R(f);P_SPINR(f)
- Try
- Q(F);CHECK,N_PINR(f)
- Vars
- S(i);P_SPINS(i)::B(G),XP(h)
- Refutation
- R(f);CHECK,P_SPINR(f)
- Try
- Actual
- B(A);
- Threat
- R1(E)
- Vars
- B(b);P_SPINB(c),XP(D)::QAR2(F),XR(f)
- B(b);P_SPINB(c)::QAB(F)
- B(b);P_SPINB(c),S_CUTR(a)::B(G),XP(d)
- B(b);P_SPINB(c)::QAR2(F),XR(f)
- B(c);P_SPINB(b),SBLOCK::S(C)
- S(i);N_GUARD::QAB(F)
- S(i);N_GUARD::B(G),XP(h)
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