MESON Chess Problem Database
Problem Display
PID: 71093 (1r1BR3/pr1p2p1/N2k1bQ1/Np2p3/3q4/3R2p1/6B1/7K w - - 0 1)
Seilberger, Johann Joseph Petrus Adrianus
Skakbladet, 1946
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Qxd3
- 2.Qxd3#
- 1...Qd5
- 2.Rxd5#
- 1...Rb6
- 2.Bc7#
- 1...Rc7
- 2.Bxc7#
- 1...Ra8
- 2.Sxb7#
- 1...Rc8
- 2.Sxb7#
- 1...Rxd8
- 2.Sxb7#
- 1...b4
- 2.Sc4#
- 1...e4
- 2.Rxd4#
- 1...Qxd3
- Tries
- 1.Bf3?
- 1...Qxd3
- 2.Qxd3#
- 1...Rxd8
- 2.Sxb7#
- 1...e4
- 2.Rxd4#
- 1...Qd5
- 2.Rxd5#
- 1...Rb6
- 2.Bc7#
- 1...Rc7
- 2.Bxc7#
- 1...Ra8
- 2.Sxb7#
- 1...Rc8
- 2.Sxb7#
- 1...b4
- 2.Sc4#
- 1...g2+!
- 1...Qxd3
- 1.Bxf6?
- threat
- 2.Bh4#
- 2.Bxe5#
- 2.Bg5#
- 2.Be7#
- 2.Bxg7#
- 2.Bd8#
- 1...Qxd3
- 2.Bxe5#
- 2.Be7#
- 2.Qxd3#
- 1...gxf6
- 2.Qxf6#
- 1...e4
- 2.Rxd4#
- 1...Rd8
- 2.Sxb7#
- 2.Bh4#
- 2.Bxe5#
- 2.Bg5#
- 2.Be7#
- 2.Bxg7#
- 2.Bxd8#
- 1...Rxe8!
- threat
- 1.Rd1?
- 1...Rxd8
- 2.Sxb7#
- 1...e4
- 2.Rxd4#
- 1...Qd2
- 2.Rxd2#
- 1...Qd3
- 2.Rxd3#
- 2.Qxd3#
- 1...Qd5
- 2.Rxd5#
- 1...Rb6
- 2.Bc7#
- 1...Rc7
- 2.Bxc7#
- 1...Ra8
- 2.Sxb7#
- 1...Rc8
- 2.Sxb7#
- 1...b4
- 2.Sc4#
- 1...Qxd1+!
- 1...Rxd8
- 1.Rd2?
- 1...Rxd8
- 2.Sxb7#
- 1...e4
- 2.Rxd4#
- 1...Qd3
- 2.Rxd3#
- 2.Qxd3#
- 1...Qd5
- 2.Rxd5#
- 1...Rb6
- 2.Bc7#
- 1...Rc7
- 2.Bxc7#
- 1...Ra8
- 2.Sxb7#
- 1...Rc8
- 2.Sxb7#
- 1...b4
- 2.Sc4#
- 1...Qxd2!
- 1...Rxd8
- 1.Qxg3?
- threat
- 2.Rxd4#
- 1...Qxd3
- 2.Qxd3#
- 1...Qd5
- 2.Rxd5#
- 1...Be7!
- threat
- 1.Bf3?
- Keys
- 1.Qf5!
- 1...Qxd3
- 2.Qxd3#
- 1...Rxd8
- 2.Sxb7#
- 1...Bxd8
- 2.Qxe5#
- 1...Qd5
- 2.Rxd5#
- 1...Rb6
- 2.Bc7#
- 1...Rc7
- 2.Bxc7#
- 1...Ra8
- 2.Sxb7#
- 1...Rc8
- 2.Sxb7#
- 1...Bh4
- 2.Qxe5#
- 1...Bg5
- 2.Qxe5#
- 1...Be7
- 2.Bxe7#
- 1...b4
- 2.Sc4#
- 1...e4
- 2.Qc5#
- 1...g5
- 2.Qxf6#
- 1...g6
- 2.Qxf6#
- 1...Qxd3
- 1.Qf5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- Q(b);N_SPINQ(b),OGATE,XR(C)::QAR(F),XQ(b)
- Q(b);OGATE,P_PINB(B)::R1(C),XQ(b)
- R(h);N_GUARD::B(G)
- R(h);N_GUARD::B(G),XR(h)
- R(k);N_GUARD::S(D),XR(h)
- R(k);N_GUARD,XB(G)::S(D),XR(h)
- P(c);N_GUARD::S(D)
- P(d);N_GUARD::R(C),XQ(b)
- Tries
- Try
- B(B);
- Vars
- Q(b);N_SPINQ(b),OGATE,XR(C)::QAR(F),XQ(b)
- R(k);N_GUARD,XB(G)::S(D),XR(h)
- P(d);N_GUARD::R(C),XQ(b)
- Q(b);OGATE,P_PINB(B)::R1(C),XQ(b)
- R(h);N_GUARD::B(G)
- R(h);N_GUARD::B(G),XR(h)
- R(k);N_GUARD::S(D),XR(h)
- P(c);N_GUARD::S(D)
- Refutation
- P(a);CHECK
- Try
- B(G);XB(f)
- Threat
- DUALS(6)
- Vars
- P(j);OGATE,P_SPINP(j),XB(G)::QAR2(F),XP(j)
- P(d);N_GUARD::R(C),XQ(b)
- Refutation
- R(k);XR(H)
- Try
- R(C);
- Vars
- R(k);N_GUARD,XB(G)::S(D),XR(h)
- P(d);N_GUARD::R(C),XQ(b)
- Q(b);OGATEB::R(C),XQ(b)
- Q(b);OGATE,P_PINB(B)::R1(C),XQ(b)
- R(h);N_GUARD::B(G)
- R(h);N_GUARD::B(G),XR(h)
- R(k);N_GUARD::S(D),XR(h)
- P(c);N_GUARD::S(D)
- Refutation
- Q(b);CHECK,N_SPINQ(b),XR(C)
- Try
- R(C);
- Vars
- R(k);N_GUARD,XB(G)::S(D),XR(h)
- P(d);N_GUARD::R(C),XQ(b)
- Q(b);OGATE,P_PINB(B)::R1(C),XQ(b)
- R(h);N_GUARD::B(G)
- R(h);N_GUARD::B(G),XR(h)
- R(k);N_GUARD::S(D),XR(h)
- P(c);N_GUARD::S(D)
- Refutation
- Q(b);N_SPINQ(b),XR(C)
- Try
- Q(F);N_PINB(f),P_PINP(d),XP(a)
- Threat
- R(C),XQ(b)
- Vars
- Q(b);N_SPINQ(b),OGATE,XR(C)::QAR(F),XQ(b)
- Q(b);OGATE,P_PINB(B)::R1(C),XQ(b)
- Refutation
- B(f);
- Try
- Actual
- Q(F);N_PINB(f)
- Vars
- Q(b);N_SPINQ(b),OGATE,XR(C)::QAR(F),XQ(b)
- R(k);N_GUARD,XB(G)::S(D),XR(h)
- B(f);N_GUARD,XB(G)::QAB1(F),XP(d)
- Q(b);OGATE,P_PINB(B)::R1(C),XQ(b)
- R(h);N_GUARD::B(G)
- R(h);N_GUARD::B(G),XR(h)
- R(k);N_GUARD::S(D),XR(h)
- B(f);N_GUARD::QAB1(F),XP(d)
- B(f);N_GUARD::B(G),XB(f)
- P(c);N_GUARD::S(D)
- P(d);OGATE::QAB1(F)
- P(j);N_GUARD::QAR2(F),XB(f)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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