| Applies to | Specifics | Date |
| SCUD | Revised the file, Relays_SCUD2.pdf. This version retains more of basic SCUD. | Dec 17/2023 |
| SOS | Replaced XYZ with EXYZ. Also added a modified EXYZ in competition after we open 1m and opponents make a 1-level suit overcall. | Nov 10/2023 |
| SCUD | After 2♦: Replaced the 2♥/2♠ point count responses with 2/1 controls where an ace is two and a king is one control. 2♥ shows 0 or 1 control so at most one king. 2♠ is a GF showing 2+ controls so at least an ace or two kings. | July 31, 2023 |
| SOS | Replaced current SOS with "SOS with Transfer Responses to 1♣." | May 17, 2023 |
| SOS | Uploaded a revised version. | Dec 4, 2022 |
| SCUD | After 2♦: With unbalanced hands, opener rebids up line as now after a 2♥ response. But after a 2♠ response, opener's first priority is to show a 4-card major. | Nov 24/2022 |
| SCUD | After 1♦: Removed 5=5 hands from reverse Flannery responses. Only 5=4 now. With 5=5 respond 1♠. Then rebid 2♥ with less than invitational values and 3♥ with invitational. | Sept 15/2022 |
| SCUD | After 1♣: Responder bids 2♠ with the reverse Flannery hands. Then 2♦/2♥ are transfers with 6+ cards in ♥/♠ respectively. Either weak or GF. This includes the weak flips but allows for GF hands also. | June 20/2022 |
| SCUD | After 1♦ - (X/1♥) - ?, responses of 1♠ and 1NT show 5+ clubs and 5+ diamonds respectively. | May 17/2022 |
| SCUD | After 1♦ - 1M/1NT - 2NT - ?, 4♣ is Kickback for diamonds and 4♦ is Kickback for clubs. | Jan 26/2022 |
| SCUD | After 1♦ - 2NT - ?, 3M by opener shows shortness. | Jan 2, 2022 |
| SCUD | Added "Pick a Minor lebensohl" in common lebensohl situations after 2M interference. | Aug 8/2021 |
| SCUD | Relay Checkback. After 1♣ - 1♠ - 1NT - 2♣ - 2♦ - ? added 2NT/3NT showing 4=5 majors. | Feb 1/2021 |
| SCUD | After 1♣ - (1M) - pass - (2M) - X - (pass) - ? and similar, 2NT is lebensohl asking 3♣. Direct 3m shows top of responder's known range. | Jan 14/2021 |
| SCUD | After 1♣ - 1M - 2M - ?, 4m by responder is a splinter for the flip suit, M. GF. | Nov 4, 2020 |
| SCUD | After 2♣ - 2♦ - 2♥ - ?, a 2NT rebid by responder shows 5+ spades, fewer than three hearts and 6+ HCP. GF. | Nov 1, 2020 |
| SCUD | As an option, a 2♥ opening can be 4=5, 4=6 Flannery instead of weak. 10-16 HCP. Plugs a hole. | Nov 1, 2020 |
| SCUD | SCUD Published by Master Point Press. Changes above are not in the book. | August 2020 |
| SCUD | When opener shows a balanced 2-point spread like 18-19, 20-21, .... ,26-27, 4NT is never quantitative. | May 22, 2020 |
| SCUD | Replaced Kantar Cue-bids with negative double cue-bids oriented toward the majors. | Feb 21, 2020 |
| SCUD | Changed the TAPS 3♠ and 4♣ responses to 2NT. Transfers now. | Feb 6, 2020 |
| SCUD | Added "No Double" responses after 1M - (X) - ?. Same as No Double advances. | Jan 24, 2020 |
| SCUD | After 1♦ - (X) - ?, responder's 1♠ and 1NT are reassigned. 1♠ shows 9+ balanced with no major or 5+ clubs. 1NT shows 5+ diamonds. Opener assumes 1♠ is the balanced hand. | Jan 18, 2020 |
| SCUD | Over our 1♦, a jump response of 2NT now shows a limit raise or better in either minor even in competition. | Dec 6, 2019 |
| SCUD | Removed Hitchiker. Improved Scramble Stayman option. | Nov 22, 2019 |
| SCUD | Strong 4=5 and 5=4 majors now shown separately. | Oct 21, 2019 |
| SCUD | Ongoing revisions to the slam-bidding chapter. Started using Kickback. | Oct 14, 2019 |
| Both | Tweaked our defence to (1M) - Pass - (1NT) - ? | Aug 15,/2019 |
| Both | New suit bids by advancer outside the chain are a one round force. | July 11/2019 |
| Both | Added an exercise set on transfer advances. | June 9/2019 |
| SCUD | Added 28+ balanced hands to the 2♣ opening. | May 6/2019 |
| SCUD | Changed the responses to the 2♣ opening so opener can show major-minor two-suiters more easily. | April 2/2019 |
| SCUD | Made some improvements to Scudzilli and added Scudzilli to the main system. | Dec 6/2018 |
| Both | Added transfer responses after interference over our 2M opening. | Nov 21/2018 |
| Both | Some improvements made to the major suit raise structure. | Oct 21/2018 |
| SCUD | Changed 1♦ - 3♣ to a less than invitational pass-or-correct instead of limit. | Sept 24/2018 |
| SCUD | Added void showing splinters after a 1♦ opening and a 1M response. | Sept 14/2018 |
| Both | Added an optional weak two-bid response structure by Tuomo Valiaho. | Sept 11/2018 |
| SCUD | Simplified Relay Checkback. Took out the 5=4 majors by using 2♦ as Reverse Flannery over 1♣. | June 19/2018 |
| SCUD | Modified the 2NT response to 1♣ by including all 10+ hands with no major. Added a range ask. | June 19/2018 |
| Both | Added transfer responses after partner opens 1M and RHO overcalls in a suit below 3M. | May 26, 2018 |
| Both | Extended transfer advances to include all 1- and 2-level natural suit overcalls. | May 24, 2018 |
| SCUD | Added a sequence to escape to 3m holding both minors after 1♦ - 1NT. | May 20, 2018 |
| Both | Changed the 2♥ response to 1♠ from non-forcing to a one-round force. | May 19, 2018 |
| SCUD | Changed the responses after 2♦ - (X) - ? so they are similar to after 1♦ - (X) - ?. | May 19, 2018 |
| SCUD | After a 1♣ opening and a 1M flip by responder, 3NT/4♣/4♦ by opener are splinters showing shortness in clubs/diamonds/M respectively. | May 17, 2018 |
| SCUD | Eliminated the 3NT response to 1♣. Combined it with 2NT. | May 16/2018 |
| Both | Modified void-showing responses for Kickback | Mar 29, 2018 |
| Both | Modified shortness responses to Jacoby 2NT | Mar 15, 2018 |
| Both | Distinguished between X and 2NT after (1M) - X - (2M) - ? | Mar 6, 2018 |
| Both | Kickback added as an option. | Mar 6, 2018 |
| Both | Added Alerts to major suit 2-level responses. | Mar 6, 2018 |
| Both | Added 2-way transfers by Advancer to new suits after our 1M overcall. | Feb 17, 2018 |
| SCUD | Added opener's rebid to responder's transfer in competition after our 1♦ opening. | Feb 11, 2018 |
| SCUD | Updated convention card | Dec 31, 2017 |
| SCUD | Added a table in Appendix 1 summarizing responses to 1M opening or overcall. | Dec 15, 2017 |
| SCUD | Optional Scudzilli added. A version of Gazzilli that is SCUD-dependent. | Dec 11, 2017 |
| SOS | Changes to XYZ. Double relay added to get out in 3♣. | Dec 8, 2017 |
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