MESON Chess Problem Database
Problem Display
PID: 268198 (1n6/3p4/p1pK4/RpR1B1p1/1N2p1P1/Pk2P3/r1pQ4/nN1Bb3 w - - 0 1)
Ouellet, Charles
Probleemblad, 1985
#2
11 + 12
| 3713 | Snap | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Rc3#
- 1...Rxa3
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...Bf2
- 2.Qc3#
- 1...Bg3
- 2.Qc3#
- 1...Bh4
- 2.Qc3#
- 1...cxd1Q
- 2.Rc3#
- 1...cxd1S
- 2.Qxa2#
- 1...cxd1B
- 2.Rc3#
- 2.Qxa2#
- 1...cxd1R
- 2.Rc3#
- 1...Rb2
- Tries
- 1.Sd3?
- threat
- 2.Sc1#
- 2.Rc3#
- 1...Rxa3
- 2.Sc1#
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...cxd1Q
- 2.Rc3#
- 1...cxd1S
- 2.Sc1#
- 1...cxd1R
- 2.Rc3#
- 1...Rb2
- 2.Sc1#
- 1...b4
- 2.Sc1#
- 1...exd3!
- threat
- 1.Sxc6?
- threat
- 2.Qd5#
- 1...Bxd2
- 2.Sxd2#
- 1...cxd1Q
- 2.Sd4#
- 2.Rc3#
- 1...cxd1R
- 2.Sd4#
- 2.Rc3#
- 1...dxc6!
- threat
- 1.Bf3?
- 1...Rxa3
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...cxb1Q
- 2.Rc3#
- 1...cxb1S
- 2.Qxa2#
- 1...cxb1B
- 2.Rc3#
- 1...cxb1R
- 2.Rc3#
- 2.Qxa2#
- 1...c1Q
- 2.Qxa2#
- 1...c1S
- 2.Rc3#
- 1...c1B
- 2.Rc3#
- 2.Qxa2#
- 1...c1R
- 2.Qxa2#
- 1...Rb2
- 2.Rc3#
- 1...Bf2
- 2.Qc3#
- 1...Bg3
- 2.Qc3#
- 1...Bh4
- 2.Qc3#
- 1...exf3!
- 1...Rxa3
- 1.Bxa1?
- threat
- 2.Rc3#
- 1...Rxa1
- 2.Qxc2#
- 1...Rxa3
- 2.Bxc2#
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...cxd1S
- 2.Qxa2#
- 1...Bg3+!
- threat
- 1.Bd4?
- 1...Rxa3
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...cxd1Q
- 2.Rc3#
- 2.Qxa2#
- 1...cxd1S
- 2.Qxa2#
- 1...cxd1B
- 2.Rc3#
- 2.Qxa2#
- 1...cxd1R
- 2.Rc3#
- 2.Qxa2#
- 1...Rb2
- 2.Rc3#
- 1...Bf2
- 2.Qc3#
- 1...Bh4
- 2.Qc3#
- 1...Bg3+!
- 1...Rxa3
- 1.Bf6?
- 1...Rxa3
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...cxd1Q
- 2.Rc3#
- 1...cxd1S
- 2.Qxa2#
- 1...cxd1B
- 2.Rc3#
- 2.Qxa2#
- 1...cxd1R
- 2.Rc3#
- 1...Rb2
- 2.Rc3#
- 1...Bf2
- 2.Qc3#
- 1...Bh4
- 2.Qc3#
- 1...Bg3+!
- 1...Rxa3
- 1.Bg7?
- 1...Rxa3
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...cxd1Q
- 2.Rc3#
- 1...cxd1S
- 2.Qxa2#
- 1...cxd1B
- 2.Rc3#
- 2.Qxa2#
- 1...cxd1R
- 2.Rc3#
- 1...Rb2
- 2.Rc3#
- 1...Bf2
- 2.Qc3#
- 1...Bh4
- 2.Qc3#
- 1...Bg3+!
- 1...Rxa3
- 1.Bh8?
- 1...Rxa3
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...cxd1Q
- 2.Rc3#
- 1...cxd1S
- 2.Qxa2#
- 1...cxd1B
- 2.Rc3#
- 2.Qxa2#
- 1...cxd1R
- 2.Rc3#
- 1...Rb2
- 2.Rc3#
- 1...Bf2
- 2.Qc3#
- 1...Bh4
- 2.Qc3#
- 1...Bg3+!
- 1...Rxa3
- 1.Rxa6?
- 1...Rxa3
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...cxd1Q
- 2.Rc3#
- 1...cxd1S
- 2.Qxa2#
- 1...cxd1B
- 2.Rc3#
- 2.Qxa2#
- 1...cxd1R
- 2.Rc3#
- 1...Rb2
- 2.Rc3#
- 1...Bf2
- 2.Qc3#
- 1...Bg3
- 2.Qc3#
- 1...Bh4
- 2.Qc3#
- 1...Sxa6!
- 1...Rxa3
- 1.Rxc6?
- threat
- 2.Qd5#
- 1...Rxa3
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...cxd1Q
- 2.Rc3#
- 1...cxd1R
- 2.Rc3#
- 1...dxc6!
- threat
- 1.Qd3+?
- 1...Bc3
- 2.Qxc3#
- 1...exd3!
- 1...Bc3
- 1.Sd3?
- Keys
- 1.Be2!
- 1...Rxa3
- 2.Rxa3#
- 1...Bxd2
- 2.Sxd2#
- 1...cxb1Q
- 2.Rc3#
- 1...cxb1S
- 2.Qxa2#
- 1...cxb1B
- 2.Rc3#
- 1...cxb1R
- 2.Rc3#
- 2.Qxa2#
- 1...c1Q
- 2.Qxa2#
- 1...c1S
- 2.Rc3#
- 1...c1B
- 2.Rc3#
- 2.Qxa2#
- 1...c1R
- 2.Qxa2#
- 1...Rb2
- 2.Rc3#
- 1...Bf2
- 2.Qc3#
- 1...Bg3
- 2.Qc3#
- 1...Bh4
- 2.Qc3#
- 1...Rxa3
- 1.Be2!
Anticipated by 271435(1951)
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- R(c);SBLOCK::R1(I)
- R(c);OGATE,XP(D)::R1(H),XR(c)
- B(b);XQ(C)::S(A),XB(b)
- B(b);N_GUARD::QAR1(C)
- B(b);N_GUARD,P_PINB(J)::QAR1(C)
- P(d);N_SPINP(d),P_PINQ(C),XB(B)::R1(I)
- P(d);N_SPINP(d),OGATE,XB(B)::QAB1(C),XR(c)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(b);XQ(C)::S(A),XB(b)
- P(d);N_SPINP(d),XB(B)::R1(I)
- P(d);N_SPINP(d),XB(B)::S(F)
- R(c);::S(F)
- P(g);::S(F)
- Refutation
- P(f);XS(F)
- Try
- S(F);XP(j)
- Threat
- QAB(C)
- Vars
- B(b);XQ(C)::S(A),XB(b)
- Refutation
- P(k);XS(F)
- Try
- B(B);N_PINP(d)
- Vars
- R(c);OGATE,XP(D)::R1(H),XR(c)
- B(b);XQ(C)::S(A),XB(b)
- P(d);XS(A)::R1(I)
- P(d);OGATE,XS(A)::QAB1(C),XR(c)
- P(d);OGATE::QAB1(C),XR(c)
- P(d);::R1(I)
- R(c);SBLOCK::R1(I)
- B(b);N_GUARD::QAR1(C)
- B(b);N_GUARD,P_PINB(J)::QAR1(C)
- Refutation
- P(f);XB(B)
- Try
- B(J);XS(a)
- Threat
- R1(I)
- Vars
- R(c);N_GUARD,XB(J)::QAB1(C),XP(d)
- B(b);XQ(C)::S(A),XB(b)
- P(d);N_SPINP(d),OGATE,XB(B)::QAB1(C),XR(c)
- Refutation
- B(b);CHECK
- Try
- B(J);
- Vars
- R(c);OGATE,XP(D)::R1(H),XR(c)
- B(b);XQ(C)::S(A),XB(b)
- P(d);N_SPINP(d),OGATE,XB(B)::QAB1(C),XR(c)
- R(c);SBLOCK::R1(I)
- B(b);N_GUARD::QAR1(C)
- Refutation
- B(b);CHECK
- Try
- B(J);
- Vars
- R(c);OGATE,XP(D)::R1(H),XR(c)
- B(b);XQ(C)::S(A),XB(b)
- P(d);N_SPINP(d),P_PINQ(C),XB(B)::R1(I)
- P(d);N_SPINP(d),OGATE,XB(B)::QAB1(C),XR(c)
- R(c);SBLOCK::R1(I)
- B(b);N_GUARD::QAR1(C)
- Refutation
- B(b);CHECK
- Try
- B(J);
- Vars
- R(c);OGATE,XP(D)::R1(H),XR(c)
- B(b);XQ(C)::S(A),XB(b)
- P(d);N_SPINP(d),P_PINQ(C),XB(B)::R1(I)
- P(d);N_SPINP(d),OGATE,XB(B)::QAB1(C),XR(c)
- R(c);SBLOCK::R1(I)
- B(b);N_GUARD::QAR1(C)
- Refutation
- B(b);CHECK
- Try
- B(J);
- Vars
- R(c);OGATE,XP(D)::R1(H),XR(c)
- B(b);XQ(C)::S(A),XB(b)
- P(d);N_SPINP(d),P_PINQ(C),XB(B)::R1(I)
- P(d);N_SPINP(d),OGATE,XB(B)::QAB1(C),XR(c)
- R(c);SBLOCK::R1(I)
- B(b);N_GUARD::QAR1(C)
- Refutation
- B(b);CHECK
- Try
- R(H);XP(i)
- Vars
- R(c);OGATE,XP(D)::R1(H),XR(c)
- B(b);XQ(C)::S(A),XB(b)
- P(d);N_SPINP(d),P_PINQ(C),XB(B)::R1(I)
- P(d);N_SPINP(d),OGATE,XB(B)::QAB1(C),XR(c)
- R(c);SBLOCK::R1(I)
- B(b);N_GUARD::QAR1(C)
- B(b);N_GUARD,P_PINB(J)::QAR1(C)
- Refutation
- S(l);XR(H)
- Try
- R(I);XP(j)
- Threat
- QAB(C)
- Vars
- R(c);OGATE,XP(D)::R1(H),XR(c)
- B(b);XQ(C)::S(A),XB(b)
- P(d);N_SPINP(d),P_PINQ(C),XB(B)::R1(I)
- Refutation
- P(k);XR(I)
- Try
- Q(C);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAR1(C),XB(b)
- Refutation
- P(f);XQ(C)
- Try
- Actual
- B(B);N_PINP(d)
- Vars
- R(c);OGATE,XP(D)::R1(H),XR(c)
- B(b);XQ(C)::S(A),XB(b)
- P(d);XS(A)::R1(I)
- P(d);OGATE,XS(A)::QAB1(C),XR(c)
- P(d);OGATE::QAB1(C),XR(c)
- P(d);::R1(I)
- R(c);SBLOCK::R1(I)
- B(b);N_GUARD::QAR1(C)
- B(b);N_GUARD,P_PINB(J)::QAR1(C)
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).