MESON Chess Problem Database
Problem Display
PID: 198269 (2Q2nr1/p7/8/K1N3rR/P2k1P2/2Nppn2/B1R1b3/B3b3 w - - 0 1)
Roura, Juan R
Rivista del Club Argentino de Ajedrez, 1920
#2
10 + 10
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sb3#
- 2.Rd5#
- 1...Rg2
- 2.Sb3#
- 2.Rd5#
- 1...Rg3
- 2.Sb3#
- 2.Rd5#
- 1...Rg4
- 2.Sb3#
- 2.Rd5#
- 1...Rxc5+
- 2.Qxc5#
- 1...Rd5
- 2.Rxd5#
- 1...R5g6
- 2.Sb3#
- 2.Rd5#
- 1...R5g7
- 2.Sb3#
- 2.Rd5#
- 1...Bf2
- 2.Sb1#
- 2.Sd1#
- 2.Sxe2#
- 2.Se4#
- 2.Sb5#
- 2.Sd5#
- 1...Bxc3+
- 2.Bxc3#
- 1...Bg3
- 2.Sb1#
- 2.Sd1#
- 2.Sxe2#
- 2.Se4#
- 2.Sb5#
- 2.Sd5#
- 1...Bh4
- 2.Sb1#
- 2.Sd1#
- 2.Sxe2#
- 2.Se4#
- 2.Sb5#
- 2.Sd5#
- 1...Sd2
- 2.Sb1#
- 2.Sd1#
- 2.Sxe2#
- 2.Se4#
- 2.Sb5#
- 2.Sd5#
- 1...Se5
- 2.Sb3#
- 1...d2
- 2.Sb1#
- 2.Sd1#
- 2.Sxe2#
- 2.Se4#
- 2.Sb5#
- 2.Sd5#
- 1...Rg1
- Tries
- 1.Kb5?
- threat
- 2.Sxe2#
- 1...Rxc5+
- 2.Qxc5#
- 1...Bxc3
- 2.Bxc3#
- 1...Bd1
- 2.Se2#
- 1...Bf1
- 2.Se2#
- 1...a6+!
- threat
- 1.Rd2?
- threat
- 2.Sb1#
- 2.Sd1#
- 2.Sxe2#
- 2.Se4#
- 2.Sb5#
- 2.Sd5#
- 1...Rxc5+
- 2.Qxc5#
- 1...exd2
- 2.Sd1#
- 2.Sd5#
- 1...Rd5
- 2.Sb1#
- 2.Sd1#
- 2.Sxe2#
- 2.Se4#
- 2.Sb5#
- 2.Sxd5#
- 2.Rxd5#
- 1...Bd1
- 2.Sb1#
- 2.Sxd1#
- 2.Se2#
- 2.Se4#
- 2.Sb5#
- 2.Sd5#
- 2.Rxd3#
- 1...Bf1
- 2.Sb1#
- 2.Sd1#
- 2.Se2#
- 2.Se4#
- 2.Sb5#
- 2.Sd5#
- 1...Bxd2!
- threat
- 1.Rxg5?
- threat
- 2.Sb3#
- 2.Rd5#
- 1...Bxc3+
- 2.Bxc3#
- 1...Sxg5
- 2.Sb3#
- 1...dxc2
- 2.Rd5#
- 1...Sd2
- 2.Sb1#
- 2.Sd1#
- 2.Sxe2#
- 2.S3e4#
- 2.Sb5#
- 2.Sd5#
- 2.Rd5#
- 1...Se5
- 2.Sb3#
- 1...d2
- 2.Sb1#
- 2.Sd1#
- 2.Sxe2#
- 2.S3e4#
- 2.Sb5#
- 2.Sd5#
- 2.Rd5#
- 1...Rxg5!
- threat
- 1.Kb5?
- Keys
- 1.Rb2!
- threat
- 2.Rb4#
- 1...Rxc5+
- 2.Qxc5#
- 1...Kxc3
- 2.Rxe2#
- 1...Sd2
- 2.Sb5#
- 1...Se5
- 2.Sb3#
- 1...d2
- 2.Sxe2#
- threat
- 1.Rb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- R(g);CHECK,OGATE,XS(H)::QAB1(J),XR(g)
- R(g);OGATE::R1(I),XR(g)
- B(a);CHECK,OGATE,P_PINS(H),P_SPINB(a),XS(D)::B(A),XB(a)
- S(e);::S(H)
- Tries
- Try
- K(G);N_SPINS(D),P-FLIGHT,P_SPINS(H)
- Threat
- B(A)+S(D),DCHECK,XB(b)
- Vars
- R(g);CHECK,OGATE,XS(H)::QAB1(J),XR(g)
- B(a);OGATE,P_SPINB(a),XS(D)::B(A),XB(a)
- B(b);::B(A)+S(D),DCHECK
- Refutation
- P(h);CHECK
- Try
- R(C);N_SPINS(D),P_PINP(c),P_SPINS(H)
- Threat
- DUALS(6)
- Vars
- R(g);CHECK,OGATE,XS(H)::QAB1(J),XR(g)
- Refutation
- B(a);N_PINS(H),N_SPINP(c),P_PINS(D),XR(C)
- Try
- R(I);XR(g)
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XS(D)::B(A),XB(a)
- S(e);XR(I)::S(H)
- P(c);XR(C)::R1(I)
- S(e);::S(H)
- Refutation
- R(j);XR(I)
- Try
- Actual
- R(C);
- Threat
- R(C)
- Vars
- R(g);CHECK,OGATE,XS(H)::QAB1(J),XR(g)
- K(f);OGATEB,P_PINS(H),S_FLIGHT,XS(D)::B(A)+R(C),XB(b)
- S(e);N_PINS(D),P_PINS(H)::S(D)
- S(e);::S(H)
- P(c);N_PINS(D),P_PINS(H)::S(D),XB(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).