MESON Chess Problem Database
Problem Display
PID: 231216 (7b/2p5/8/2Bb2Rp/R1npk3/pN2p1Pp/K3Q1rr/4N2B w - - 0 1)
Mari, Alberto
1st HM., Bristol Times and Mirror, 1927
#2
9 + 12
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Qf3#
- 1...Sd2
- 2.Qd3#
- 1...Sa5
- 2.Qc2#
- 1...Se5
- 2.Rxd4#
- 1...Sb6
- 2.Qc2#
- 1...Sd6
- 2.Qc2#
- 1...d3
- 2.Sd2#
- 1...Sb2
- Tries
- 1.Ka1?
- threat
- 2.Qd3#
- 2.Qf3#
- 1...Sb2
- 2.Sd2#
- 2.Qf3#
- 1...Sd2
- 2.Sxd2#
- 2.Qd3#
- 1...Se5
- 2.Sd2#
- 2.Rxd4#
- 1...d3+!
- threat
- 1.Kb1?
- threat
- 2.Qd3#
- 2.Qf3#
- 1...Sd2+
- 2.Sxd2#
- 1...Sb2
- 2.Sd2#
- 2.Qf3#
- 1...Se5
- 2.Sd2#
- 2.Rxd4#
- 1...d3
- 2.Sd2#
- 2.Qxd3#
- 2.Qf3#
- 2.Qxe3#
- 1...a2+!
- threat
- 1.Bxg2+?
- 1...hxg2
- 2.Qd3#
- 2.Qf3#
- 1...Rxg2!
- 1...hxg2
- 1.Bb6?
- threat
- 2.Sc5#
- 1...Sxb6
- 2.Qc2#
- 1...Se5
- 2.Rxd4#
- 1...Sb2
- 2.Qf3#
- 1...Sd2
- 2.Qd3#
- 1...Sa5
- 2.Qc2#
- 1...Sd6
- 2.Qc2#
- 1...d3
- 2.Sd2#
- 1...c5
- 2.Sxc5#
- 1...cxb6!
- threat
- 1.Be7?
- threat
- 2.Sc5#
- 1...Sb2
- 2.Qf3#
- 1...Sd2
- 2.Qd3#
- 1...Sa5
- 2.Qc2#
- 1...Se5
- 2.Rxd4#
- 1...Sb6
- 2.Qc2#
- 1...Sd6
- 2.Qc2#
- 1...c5
- 2.Sxc5#
- 1...d3!
- threat
- 1.Bf8?
- threat
- 2.Sc5#
- 1...Sb2
- 2.Qf3#
- 1...Sd2
- 2.Qd3#
- 1...Sa5
- 2.Qc2#
- 1...Se5
- 2.Rxd4#
- 1...Sb6
- 2.Qc2#
- 1...Sd6
- 2.Qc2#
- 1...c5
- 2.Sxc5#
- 1...d3!
- threat
- 1.Rxc4?
- threat
- 2.Sd2#
- 2.Qc2#
- 1...Rxh1
- 2.Sd2#
- 1...Bxc4!
- threat
- 1.Ka1?
- Keys
- 1.Ba7!
- threat
- 2.Sc5#
- 1...d3
- 2.Sd2#
- 1...Sb2
- 2.Qf3#
- 1...Sd2
- 2.Qd3#
- 1...Sa5
- 2.Qc2#
- 1...Se5
- 2.Rxd4#
- 1...Sb6
- 2.Qc2#
- 1...Sd6
- 2.Qc2#
- 1...c5
- 2.Sxc5#
- threat
- 1.Ba7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(f);N_PINQ(D),P_PINS(E)::QAB1(D)
- S(f);P_PINS(E),S_CUTP(g)::QAB(D)
- S(f);OGATE,P_PINS(E)::R1(G),XP(g)
- P(g);P_SPINS(f)::S(E)
- Tries
- Try
- K(C);N_SPINQ(D),P-FLIGHT
- Threat
- DUALS(2)
- Refutation
- P(g);CHECK,P_SPINS(f)
- Try
- K(C);N_SPINQ(D),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::S(E),XS(f)
- Refutation
- P(c);CHECK
- Try
- B(B);CHECK,N_SPINQ(D),XR(a)
- Refutation
- R(b);P_PINQ(D),XB(B)
- Try
- B(H);
- Threat
- S(E)
- Vars
- S(f);P_PINS(E),S_CUTP(g),XB(H)::QAB(D)
- S(f);OGATE,P_PINS(E)::R1(G),XP(g)
- S(f);N_PINQ(D),P_PINS(E)::QAB1(D)
- S(f);P_PINS(E),S_CUTP(g)::QAB(D)
- P(g);P_SPINS(f)::S(E)
- P(k);::S(E),XP(k)
- Refutation
- P(k);XB(H)
- Try
- B(H);
- Threat
- S(E)
- Vars
- S(f);N_PINQ(D),P_PINS(E)::QAB1(D)
- S(f);P_PINS(E),S_CUTP(g)::QAB(D)
- S(f);OGATE,P_PINS(E)::R1(G),XP(g)
- P(k);::S(E),XP(k)
- Refutation
- P(g);P_SPINS(f)
- Try
- B(H);
- Threat
- S(E)
- Vars
- S(f);N_PINQ(D),P_PINS(E)::QAB1(D)
- S(f);P_PINS(E),S_CUTP(g)::QAB(D)
- S(f);OGATE,P_PINS(E)::R1(G),XP(g)
- P(k);::S(E),XP(k)
- Refutation
- P(g);P_SPINS(f)
- Try
- R(G);XS(f)
- Threat
- DUALS(2)
- Vars
- R(b);N_SPINR(a),XB(B)::S(E)
- Refutation
- B(i);P_PINS(E),XR(G)
- Try
- Actual
- B(H);
- Threat
- S(E)
- Vars
- P(g);P_SPINS(f)::S(E)
- S(f);N_PINQ(D),P_PINS(E)::QAB1(D)
- S(f);P_PINS(E),S_CUTP(g)::QAB(D)
- S(f);OGATE,P_PINS(E)::R1(G),XP(g)
- P(k);::S(E),XP(k)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).