MESON Chess Problem Database
Problem Display
PID: 228969 (6q1/4R2b/2rB4/1NpkN1R1/p5P1/1r2Q1nK/B7/8 w - - 0 1)
Mari, Alberto
4th HM., El Ajedrez Argentino, 1926
#2
9 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxd6
- 2.Sc3#
- 2.Sc7#
- 1...Bd3
- 2.Qxd3#
- 1...Se4
- 2.Qd3#
- 1...Sf5
- 2.Qf3#
- 1...c4
- 2.Qd4#
- 1...Rxd6
- Tries
- 1.Sc7+?
- 1...Kxd6
- 2.Rd7#
- 1...Rxc7!
- 1...Kxd6
- 1.Sf3+?
- 1...Qxg5
- 2.Qe6#
- 1...Bf5
- 2.Qd3#
- 1...Sf5
- 2.Qd3#
- 2.Qe4#
- 1...Kc4!
- 1...Qxg5
- 1.Sxc6+?
- 1...Kc4
- 2.Sa3#
- 2.Rxc5#
- 1...Kxc6
- 2.Qxc5#
- 1...Qxg5
- 2.Qxc5#
- 1...Bf5
- 2.Qxc5#
- 1...Sf5!
- 1...Kc4
- 1.Sg6+?
- 1...Sf5
- 2.Qd3#
- 1...Kc4!
- 1...Sf5
- 1.Sd7+?
- 1...Qxg5
- 2.Qe6#
- 1...Bf5
- 2.Qd3#
- 1...Sf5
- 2.Qd3#
- 1...Kc4!
- 1...Qxg5
- 1.Sf7+?
- 1...Qxg5
- 2.Qe6#
- 1...Bf5
- 2.Qd3#
- 2.Qe6#
- 1...Sf5
- 2.Qd3#
- 1...Kc4!
- 1...Qxg5
- 1.Bxb3+?
- 1...c4
- 2.Qd4#
- 1...axb3!
- 1...c4
- 1.Qd2+?
- 1...Bd3
- 2.Qxd3#
- 1...Ke4!
- 1...Bd3
- 1.Qxc5+?
- 1...Ke4
- 2.Qd4#
- 1...Rxc5!
- 1...Ke4
- 1.Qf3+?
- 1...Se4
- 2.Qd3#
- 1...Be4!
- 1...Se4
- 1.Sc7+?
- Keys
- 1.Qc3!
- threat
- 2.Qc4#
- 1...Ke4
- 2.Sf7#
- 1...Bd3
- 2.Qxd3#
- 1...Sf1
- 2.Sg6#
- 1...Sh1
- 2.Sg6#
- 1...Se2
- 2.Sg6#
- 1...Se4
- 2.Qd3#
- 1...Sf5
- 2.Qf3#
- 1...Sh5
- 2.Sg6#
- 1...c4
- 2.Qd4#
- threat
- 1.Qc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD::QAR2(B),XB(g)
- S(b);P_PINQ(B),S_CUTB(g)::QAR2(B)
- S(b);N_GUARD,P_PINQ(B),S_CUTB(g)::QAB(B)
- P(d);N_GUARD,N_SPINR(a)::QAR1(B)
- Tries
- Try
- S(E);CHECK
- Vars
- K(e);N_SPINR(a),P-FLIGHT,XB(H)::R1(I)
- Refutation
- R(f);XS(E)
- Try
- S(F);CHECK
- Vars
- Q(h);XR(G)::QAB1(B)
- B(g);P_PINP(D),P_SPINB(g)::QAR2(B)
- Refutation
- K(e);S_FLIGHT
- Try
- S(F);CHECK,XR(f)
- Vars
- K(e);N_SPINR(a),S_FLIGHT,XS(F)::QAR1(B),XP(d)
- Q(h);XR(G)::QAR1(B),XP(d)
- B(g);P_PINP(D),P_SPINB(g)::QAR1(B),XP(d)
- Refutation
- S(b);P_PINQ(B),P_SPINS(b)
- Try
- S(F);CHECK
- Vars
- S(b);P_PINQ(B),P_SPINS(b)::QAR2(B)
- Refutation
- K(e);S_FLIGHT
- Try
- S(F);CHECK
- Vars
- Q(h);XR(G)::QAB1(B)
- B(g);P_PINP(D),P_SPINB(g)::QAR2(B)
- S(b);P_PINQ(B),P_SPINS(b)::QAR2(B)
- Refutation
- K(e);S_FLIGHT
- Try
- S(F);CHECK
- Vars
- Q(h);XR(G)::QAB1(B)
- S(b);P_PINQ(B),P_SPINS(b)::QAR2(B)
- Refutation
- K(e);S_FLIGHT
- Try
- B(A);CHECK,XR(a)
- Vars
- P(d);P_SPINP(d)::QAR1(B)
- Refutation
- P(c);XB(A)
- Try
- Q(B);CHECK
- Vars
- B(g);N_GUARD,P_SPINB(g)::QAR2(B),XB(g)
- Refutation
- K(e);N_SPINR(a),S_FLIGHT
- Try
- Q(B);CHECK,XP(d)
- Vars
- K(e);N_SPINR(a),S_FLIGHT::QAR1(B)
- Refutation
- R(f);XQ(B)
- Try
- Q(B);CHECK
- Vars
- S(b);P_PINQ(B),P_SPINS(b),S_CUTB(g)::QAR2(B)
- Refutation
- B(g);P_SPINB(g)
- Try
- Actual
- Q(B);
- Threat
- QAB1(B)
- Vars
- K(e);N_SPINR(a),S_FLIGHT::R(I)+S(F)
- B(g);N_GUARD::QAR2(B),XB(g)
- S(b);N_GUARD,P_PINQ(B)::R(G)+S(F)
- S(b);P_PINQ(B),S_CUTB(g)::QAR2(B)
- S(b);N_GUARD,P_PINQ(B),S_CUTB(g)::QAB(B)
- P(d);N_GUARD,N_SPINR(a)::QAR1(B)
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).